Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use are covered from day one. Malfunctions are covered after the manufacturer's warranty. Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- No Additional Cost: You pay nothing for repairs – parts, labor, and shipping included.
- Coverage: Plan starts on the date of purchase. Drops, spills and cracked screens due to normal use are covered from day one. Malfunctions are covered after the manufacturer's warranty. Real experts are available 24/7 to help with set-up, connectivity issues, troubleshooting and much more.
- Easy Claims Process: File a claim anytime online or by phone. Most claims approved within minutes. If we can’t repair it, we’ll send you an Amazon e-gift card for the purchase price of your covered product or replace it.
- Product Eligibility: Plan must be purchased with a product or within 30 days of the product purchase. Pre-existing conditions are not covered.
- Terms & Details: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more info. Terms & Conditions will be available in Your Orders on Amazon. Asurion will also email your plan confirmation with Terms & Conditions to the address associated with your Amazon account within 24 hours of purchase.
- Buy a lot of stuff on Amazon? Tons of items eligible for coverage, from the latest tech like Laptops, Game Consoles, TVs, Phones, and Cameras to major appliances, sporting goods, tools, toys, personal care, furniture, and more (not eligible for commercial or business use items).
- Accidents Happen. That’s why for your portable products we cover accidental damage from handling such as drops, spills and cracked screens. We also cover electrical and mechanical malfunctions, power surges, and wear and tear.
- Past and Future Purchases covered. 30 days after you are enrolled, all eligible past purchases (up to 1 year prior to enrollment) and future eligible purchases made on Amazon will be covered by your plan as long as you are enrolled.
- Fast, easy claims. Frustration-Free claims, with most filed in minutes. We will fix it, replace it, or reimburse you with an Amazon e-gift card for the purchase price of your product (excluding tax). File at Asurion.com/amazon.
- No Hidden Fees. For just $16.99 a month + tax you’re covered for up to 5,000 in claims per 12-month period. *THIS PROGRAM IS MONTH-TO-MONTH AND WILL CONTINUE UNTIL CANCELED* Coverage for all products ends 30 days after the plan is canceled. Cancel any time.
Add to your order
- Coverage for accidental damage including drops, spills, and broken parts, as well as breakdowns (plans vary)
- 24/7 support when you need it.
- Quick, easy, and frustration-free claims.

Enjoy fast, free delivery, exclusive deals, and award-winning movies & TV shows with Prime
Try Prime
and start saving today with fast, free delivery
Amazon Prime includes:
Fast, FREE Delivery is available to Prime members. To join, select "Try Amazon Prime and start saving today with Fast, FREE Delivery" below the Add to Cart button.
Amazon Prime members enjoy:- Cardmembers earn 5% Back at Amazon.com with a Prime Credit Card.
- Unlimited Free Two-Day Delivery
- Streaming of thousands of movies and TV shows with limited ads on Prime Video.
- A Kindle book to borrow for free each month - with no due dates
- Listen to over 2 million songs and hundreds of playlists
- Unlimited photo storage with anywhere access
Important: Your credit card will NOT be charged when you start your free trial or if you cancel during the trial period. If you're happy with Amazon Prime, do nothing. At the end of the free trial, your membership will automatically upgrade to a monthly membership.
-
-
-
-
-
-
-
5 VIDEOS
-

Image Unavailable
Color:
-
-
-
- To view this video download Flash Player
Edifier STAX Spirit S5 Wireless Planar Magnetic Headphones, Snapdragon Sound, aptX Adaptive, Hi-Res Audio (LDAC LHDC), Bluetooth 5.4, Dual-Mic CVC Tech, 80H Playback & Fast Charging for Audiophiles
Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Purchase options and add-ons
Brand | Edifier |
Color | SPACEBLACK |
Ear Placement | Over Ear |
Form Factor | Over Ear |
Headphones Jack | No Jack |
About this item
- [Upgraded Planar Magnetic Driver] STAX SPIRIT S5 utilizes planar magnetic drivers with EqualMass diaphragm for uniform driving force across the surface, ensuring original sound, low distortion, and fast response. Its second-gen upgraded EqualMass wiring structure enhances diaphragm stability across all frequencies with a symmetric layout.
- [CD Loseless Audio for Audiophiles] Powered by Qualcomm QCC5181 Bluetooth SoC platform and Qualcomm Snapdragon Sound tecnology, the S5 offers robust RF connection and lower power consumption for extended listening. It supports LDAC, LHDC, and all audio codecs within the Snapdragon Sound Technology Suite, including aptX HD, aptX Adaptive, and aptX Lossless.
- [Hi-Res Audio & Wireless Hi-Res Audio] With LDAC and LHDC, leading-edge high solution audio codec, S5 supports both Hi-Res audio and Hi-Res audio Wireless, offering an abundance of detail and clarity for the ultimate listening experience.
- [Multiple Connectivity Options] The STAX SPIRIT S5 features the latest Bluetooth V5.4, Google Fast Pair, USB-C and AUX cables for seamless connection. The Bluetooth V5.4 ensures a stable, smooth, and fast transmission connection, and enables simultaneous connection to two Bluetooth audio devices. With Google Fast Pair, it can quickly and effortlessly pair with your Android device under Bluetooth mode. With USB-C and AUX cables, it can be connected to all your devices.
- [Crystal Clear Calls & Low Latency] With dual-mic and Qualcomm cVc technology onboard, S5 actively suppresses ambient noise for enhanced voice clarity, delivering crystal-clear call quality wherever you are. The Closed-Back design ensures a private listening experience. Plus, the Qualcomm aptX Adaptive codec maintains the original high-resolution audio (up to 24-bit/96kHz) with minimal latency of just 89 ms end-to-end.
- [Long-lasting Comfort & Convenience] Enjoy up to 80 hours of continuous music playback on a single charge, with a speedy 10-minute charge giving you 11 hours of playback. The ergonomic design features adjustable headbands and genuine lambskin earpads for unparalleled comfort, while the foldable structure and carry case ensure easy portability and travel convenience.
- [Edifier ConneX APP] Explore the EDIFIER ConneX App for enhanced features such as personalized EQ, control options, and cushion settings. Choose from three preset EQ modes or tailor your own EQ settings to match your unique music preferences.
Additional Details


Buy it with

Frequently purchased items with fast delivery
- Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byClimatePartner certified
The Climate neutral label by ClimatePartner certifies that the carbon footprint of a product was calculated and all associated emissions were offset. Additionally, ClimatePartner encourages companies to set ambitious reduction targets and reduce their products' carbon footprints. The certificate number can be entered on ClimatePartner’s website for additional information such as the supported carbon offset project(s). ClimatePartner is improving lives by helping companies tackle climate change with practical solutions.Certification NumberJK5ZCE - Sustainability features for this product
Sustainability features
This product has sustainability features recognized by trusted certifications.Carbon impactCarbon emissions from the lifecycle of this product were measured, reduced and offset.As certified byCarbonfree Certified
Each Carbonfree Certified product goes through a cradle-to-grave assessment to determine the product’s carbon footprint. The carbon emissions associated with the product are reduced where possible, and remaining carbon emissions are offset with third-party verified carbon reduction projects in renewable energy, energy efficiency and forestry.
Top Brand: Edifier
Product Description


Edifier Headphones Product List
![]() STAX SPIRIT S5
Add to Cart
| ![]() STAX SPIRIT S3
Add to Cart
| ![]() W830NB
Add to Cart
| ![]() W820NB PLUS
Add to Cart
| ![]() W800BT PRO
Add to Cart
| ![]() WH950NB
Add to Cart
| ![]() WH700NB | |
---|---|---|---|---|---|---|---|
Customer Reviews
|
4.3 out of 5 stars 39
|
4.0 out of 5 stars 183
|
4.3 out of 5 stars 839
|
4.3 out of 5 stars 4,194
|
4.4 out of 5 stars 754
|
4.3 out of 5 stars 750
|
4.4 out of 5 stars 220
|
Price
| $499.99$499.99 | $348.00$348.00 | $79.99$79.99 | $69.99$69.99 | $49.99$49.99 | $119.99$119.99 | — |
Audio
| Hi-Res, Snapdragon Sound, LHDC | Hi-Res, Snapdragon Sound, aptX | Hi-Res Audio, LDAC, AAC | Hi-Res Wireless & Wired, LDAC | Hi-Res Audio, AAC | Hi-Res, LDAC, 6 Mics | DNN Clear Calls |
Noise Cancellation
| Call Noise Reduction | cVc 8.0 Noise Cancellation | -45dB Hybrid ANC | -43dB Hybrid ANC | -44dB Hybrid ANC | Hybrid Active Noise Cancelling | Active Noise Cancelling |
Bluetooth Version
| Bluetooth V5.4 | Bluetooth V5.2 | Bluetooth V5.4 | Bluetooth V5.2 | Bluetooth V5.4 | Bluetooth V5.3 | Bluetooth V5.3 |
Driver
| 89*70mm Planar Magnetic Driver | Planar Magnetic Driver | 40mm Dynamic Driver | 40mm Dynamic Driver | 40mm Dynamic Driver | 40mm Dynamic Driver | 40mm Dynamic Driver |
Playtime (Max)
| 80 Hrs | 80 Hrs | 94 Hrs | 49 Hrs | 45 Hrs | 55 Hrs | 68 Hrs |
Fast Charging
| 10 mins = 11 hrs | 10 mins = 11 hrs | 15 mins = 10 hrs | 10 mins = 7 hrs | 15 mins = 8 hrs | 10mins = 7hrs | 10 mins = 8 hrs |
Charging Port
| USB-C | USB-C | USB-C | USB-C | USB-C | USB-C | USB-C |
Dual-Device Connection
| ✔ | ✔ | ✔ | ✘ | ✔ | ✔ | ✔ |
App Connect
| ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
Foldable
| ✔ | ✔ | ✔ | ✘ | ✔ | ✔ | ✔ |
From the brand

-
For 29 years, Edifier has been more than just an audio brand—we're a community of sound enthusiasts. Since 1996, we've channeled our passion for audio into creating speakers, headphones, and earphones that make high-fidelity sound accessible to everyone. By blending cutting-edge technology with stunning design, we craft products that deliver exceptional sound without the high price tag.
-
-
-
Compare with similar items
This Item ![]() Edifier STAX Spirit S5 Wireless Planar Magnetic Headphones, Snapdragon Sound, aptX Adaptive, Hi-Res Audio (LDAC LHDC), Bluetooth 5.4, Dual-Mic CVC Tech, 80H Playback & Fast Charging for Audiophiles | Recommendations | |||||
Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | Try again! Added to Cart Add to cart | |
Price | $499.99$499.99 | $348.00$348.00 | -33% $119.99$119.99 List: $179.99 | $79.99$79.99 | $79.99$79.99 | $399.99$399.99 |
Delivery | Get it as soon as Monday, Mar 24 | Get it as soon as Monday, Mar 24 | Get it as soon as Monday, Mar 24 | Get it as soon as Monday, Mar 24 | Get it as soon as Monday, Mar 24 | Get it as soon as Monday, Mar 24 |
Customer Ratings | ||||||
Sold By | EdifierDirect | EdifierDirect | EdifierDirect | EdifierDirect | Edifier US | beyerdynamic USA |
connectivity tech | Wireless | Wireless, Wired 3.5mm audio plug | Wireless | Wireless | Wireless | Wireless |
headphones form factor | Over Ear | Over Ear | Over Ear | Over Ear | Over Ear | Over Ear |
connector type | — | 3.5mm Jack | wireless | USB Type C | — | — |
noise control | — | — | active noise cancellation | active noise cancellation | active noise cancellation | adaptive noise cancellation |
headphones jack | No Jack | 3.5 mm Jack | — | Type-C | — | 3.5 mm Jack |
cable feature | Without Cable | Without Cable | Without Cable | Detachable | Detachable | — |
control type | Media Control | Volume Control | App Control | Noise Control | App Control | — |
water resistance | — | not water resistant | — | not water resistant | not water resistant | not water resistant |
material | Plastic, Metal, Leather | Plastic, Leather, Stainless Steel | Faux Leather | Plastic, Metal | Leather, Metal, Plastic | Leather, Metal |
model name | edifier-s5-black-us-fbm | S3 | WH950NB | W830NB | W830NB | Aventho 300 Over Ear Wireless Headphones |
frequency response | — | 40 KHz | — | 20 hertz | 40 KHz | — |
What's in the box
Looking for specific info?
Videos
Videos for this product
13:25
Click to play video
Like NOTHING You've HEARD! Edifier Stax Spirit S5
Picky Audio
Videos for this product
5:25
Click to play video
Edifier Stax Spirit 5 HIFI Headphones: Excellent Sound!
Tech Moe
Videos for this product
0:37
Click to play video
Edifier STAX Spirit S5 Wireless Planar Magnetic Headphones
EdifierDirect
Product information
Model Name | edifier-s5-black-us-fbm |
---|---|
Connectivity Technology | Wireless |
Wireless Communication Technology | Bluetooth |
Included Components | Protective Case, Ear Cushions, Cable |
Age Range (Description) | Adult |
Material | Leather, Plastic, Metal |
Specific Uses For Product | Music, Calling |
Recommended Uses For Product | Music, Calling |
Compatible Devices | Laptops, Desktops, Tablets, Cellphones |
Control Type | Media Control |
Cable Feature | Without Cable |
Frequency Range | 20 Hz - 40 kHz |
Package Type | FFP |
Control Method | Remote |
Number of Items | 1 |
Audio Driver Type | Planar Magnetic Driver |
Bluetooth Version | 5.4 |
Audio Latency | 89 Milliseconds |
Earpiece Shape | Over Ear |
Is Autographed | No |
Series Number | 5 |
UPC | 875674007859 |
Manufacturer | Edifier |
Package Dimensions | 12.48 x 10.91 x 7.13 inches |
Item Weight | 4.31 pounds |
ASIN | B0D6B7X4YX |
Item model number | edifier-s5-black-us-fbm |
Batteries | 1 Lithium Ion batteries required. (included) |
Customer Reviews |
4.3 out of 5 stars |
Best Sellers Rank | #157,262 in Electronics (See Top 100 in Electronics) #3,516 in Over-Ear Headphones |
Date First Available | June 6, 2024 |
Country of Origin | China |
Warranty & Support
Feedback

Edifier STAX Spirit S5 Wireless Planar Magnetic Headphones, Snapdragon Sound, aptX Adaptive, Hi-Res Audio (LDAC LHDC), Bluetooth 5.4, Dual-Mic CVC Tech, 80H Playback & Fast Charging for Audiophiles
Share:
Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.
Where did you see a lower price?
Fields with an asterisk * are required
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers appreciate the headphones for their good sound quality, comfortable fit, and clear audio with good low- and high-frequency extension. They find the volume impressive with the USB-C cable, and the headphones offer good low and high frequency extension. The cooling pads are comfortable and the leather is durable. The battery life is good, with up to 24 hours of playtime and 80 hours of playback time. The build quality is also praised as lightweight and portable.
AI-generated from the text of customer reviews
Select to learn more
Customers appreciate the headphones' sound quality. They say the volume is impressive, with deep bass and over-ear active noise cancellation. The headphones have good low-frequency and high-frequency extension.
"...Conclusion: the Edifier Stax Spirit S5 is a pair of excellent sound quality portable wireless headphones with a few disadvantages...." Read more
"...the S5 to my laptop using the USB-C cable, the volume increased to impressive levels and the sound just became clearer and lively!..." Read more
"...Edifier STAX Spirit S5 Wireless Planar Magnetic Headphones – Snapdragon Sound, aptX Adaptive, Hi-Res Audio (LDAC, LHDC), Bluetooth 5.4, Dual-Mic cVc..." Read more
"...The audio quality with the planar magnetic drivers is top notch. Battery life is a full 80 or more hours!..." Read more
Customers like the comfort of the headphones. They mention the cooling pads are comfortable and the leather material.
"...However, the Edifier didn't feel uncomfortable even after wearing them for a couple of hours...." Read more
"...These are by far the most comfortable headphones I have ever owned, and come with a nice compact storage/travel case...." Read more
"...First the good. They sound amazing. They are very comfortable (I use the gel earcaps)..." Read more
"...Controls are pretty straightforward as well. The comfort is pretty good, the cooling pads are really comfortable, the leather pads are OK, but the..." Read more
Customers appreciate the headphones' clarity and details. They say the S5 offers more clarity, details, and a deep, punchy well-controlled bass. The sound is highly detailed and clear, neutral, neither cold nor warm.
"...The sound is highly detailed and clear, neutral, neither cold or warm. Soundstage is quite good for closed-back headphones...." Read more
"...The S5 offers more clarity, details and a deep punchy well controlled bass..." Read more
"...AAC Bluetooth codec, these headphones produce amazingly crisp and detailed highs (as you should expect from planars)...." Read more
"...trash death variety; these provide an unreal level of separation and clarity for some very hard music to render. Recommended highly." Read more
Customers appreciate the headphones' battery life. They say it has a full 80 hours of playback and up to 24 hours of playtime. The built-in mic and fast charging are also mentioned as positive aspects.
"...Bass, Over-Ear Active Noise Cancelling, Built-in Mic, and Up to 24 Hours of Playtime The Edifier STAX Spirit S5 sounds exceptional to me...." Read more
"...Battery life is a full 80 or more hours! Literally feels like a challenge just to have to be at a place to recharge them...." Read more
"...The look and build level are very nice. Battery life is very solid. The questionable...." Read more
Customers like the build quality of the headphones. They say lightweight, portable, and good build quality.
"...Lightweight, portable, good build quality...." Read more
"...worth the money given their excellent planar magnetic drivers and build quality...." Read more
"...Build quality is a mixed bag imo. It looks strong on paper, but given my situation, I question the durability of the internal components...." Read more
Reviews with images

Edifier Stax Collection
Top reviews from the United States
There was a problem filtering reviews. Please reload the page.
- Reviewed in the United States on August 23, 2024These sound excellent for wireless headphones. Lightweight, portable, good build quality.
In the app I set the headphones to use the dynamic option and disabled the other options by making the button press for Voice Assistant instead of mode change. I prefer the cooling ear pads, but they still get kind of warm in summer weather.
The sound is highly detailed and clear, neutral, neither cold or warm. Soundstage is quite good for closed-back headphones. Good low frequency and high frequency extension.
On my Windows 11 laptop, I like to use Alternative A2DP software for LDAC support for general listening. When I want to game and get very low latency, I use my Creative BT-W5 USB-C Bluetooth transmitter, which allows for AptX Adaptive Low Latency codec. In the Creative app, I can easily switch it to High Quality mode for high-res audio listening, and back to Low Latency mode for gaming.
Drawbacks: The headband can be a bit loose, but not so bad for my head. I would prefer if the cups rotated forward so the earpads touch the table when placed down, but instead it rotated towards you so the outside earcups touch the table. Multipoint connection can be a bit finicky connected to the Creative BT-W5 device+Windows laptop and to my Samsung Note 10 Plus phone, but not too big a problem. And of course, there is a lack of ANC, so it makes sense to have some ANC earphones or headphones for airplane use and other extra-loud places.
Conclusion: the Edifier Stax Spirit S5 is a pair of excellent sound quality portable wireless headphones with a few disadvantages. If you prioritize sound quality and comfort in wireless headphones, I think these headphones may be the best on the market in 2024.
- Reviewed in the United States on February 7, 2025These Stax Spirit S5 sound exceptional! Before buying them, I had read lots of reviews online and in Reddit forums and everybody attested to their amazing sound! Initially was using the Sennheiser momentum 2.0 over ears and after receiving the S5 and comparing the two, the difference is quite obviously an upgrade over the Sennheiser momentum 2.0! The S5 offers more clarity, details and a deep punchy well controlled bass ( the bass is almost similar to that of the Sennheiser M2, which is surprising to me considering most people say the S5 lack bass)
Note: However, the above is when I use the S5 wired with the USB-C cable connected to my laptop! I found the sound to be low even on maximum volume when using it on my iPhone via Bluetooth connection! Using the 3.5 mm cable connected to my laptop is even worse coz the sound is annoyingly low! However, once I connected the S5 to my laptop using the USB-C cable, the volume increased to impressive levels and the sound just became clearer and lively! If you listen to well recorded audio, these S5 will richly reward you with enjoyable audiophile quality sound! If you have the $500 to spare, don’t hesitate to get these amazing planar magnetic headphones!
- Reviewed in the United States on October 20, 2024I purchased both of these headphones to test side by side:
Edifier STAX Spirit S5 Wireless Planar Magnetic Headphones – Snapdragon Sound, aptX Adaptive, Hi-Res Audio (LDAC, LHDC), Bluetooth 5.4, Dual-Mic cVc Tech, 80H Playback, and Fast Charging for Audiophiles
Bose QuietComfort Ultra Bluetooth 5.3 Headphones – Wireless Headphones with Spatial Audio, Deep Bass, Over-Ear Active Noise Cancelling, Built-in Mic, and Up to 24 Hours of Playtime
The Edifier STAX Spirit S5 sounds exceptional to me. I haven’t listened to the $1,300 Sennheiser HD 800s—which, as I understand, require a separate amp—but I have tried several other headphones under $500. Compared to those, the Edifier offers a much more open and engaging sound, placing it in a class of its own. There’s something about the sound of planar magnetic drivers that makes the Bose and other traditional headphones sound muffled and dull by comparison. The Edifier's sound is far more immersive for music, especially with LDAC (Lossless Digital Audio Codec for Bluetooth) source material, which the Bose doesn’t support.
When I first put on the Edifier headphones, they weren’t as comfortable as the Bose. The Edifier is heavier, and the headband isn’t as comfortable. However, the Edifier didn't feel uncomfortable even after wearing them for a couple of hours. The Edifier app isn’t as polished as Bose’s, but both apps are functional. While Bose offers market-leading noise cancellation, the Edifier lacks active noise cancellation, however, its passive seal is effective. In my rec room—with a treadmill, a couple of noisy fans running, and landscapers mowing the lawn outside—I found the seal sufficient to block noise below the level of a distraction.
Ultimately, I didn’t keep the Edifier headphones because they didn’t get loud enough with my Bluetooth devices, especially my phone and TV. In the noisy environment described above, I had to set them at full volume, which was only marginally loud enough. The Edifier might work perfectly for you if you listen in quieter environments. I’d still recommend trying the Edifier just to experience its sound. The Bose doesn’t sound bad—just disappointing in comparison.
Since I now primarily listen to books, podcasts, and TV—and only rarely to music—the Bose headphones are a better fit for me. I’d also mention that the Bose has an "immersion" mode, though I find it gimmicky and don’t use it. If you’re commuting, the Bose’s noise cancellation would be more practical for airplanes, airports, subways, buses, and similar environments. Both headphones can also be used in wired mode, though I didn’t test that function. 4.5 Stars