True Wireless Stereo Gaming Bluetooth Earbuds,Ambient AAC ENC Headphone

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Noise Cancelling Headphones,true wireless stereo gaming bluetooth earbuds,ambient aac enc headphone

true wireless stereo gaming bluetooth earbuds,ambient aac enc headphone.jpg

Over-Ear Headphone with Deep Bass, USB-C Fast Charging, Carrying Case,Soft Earmuffs for Travel/Home/Online/Office


Specifications of stereo gaming Wireless headphone

Product Number: ANC-551L

Bluetooth Version:Bluetooth 5.0

Bluetooth Profiles:HFP,HSP,AVRCP,A2DP

Communication Distance:10m

Playing Time: ANC Feature on Up to 17 hours

ANC Feature off Up to 18 hours

Charging Time:Around2.5-3hours

Battery Capacity:520mAh




·Hybrid active noise cancellation】

Combining feed-forward and feed-back ANC to reduce ambient noise up to 20dB by placing a microphone on the inside and outside of the ear cup, COUMI ANC wireless headphones can detect and suppress the ambient noise up to 90% at a broader range of frequencies than non-hybrid one. Give you an immersive music experience in crowded places like airports, railway stations,crowded street.

·Wide Range Audio】

With 40mm large dynamic drivers tuned precisely by COUMI engineers, the active noise-canceling over-ear headphones not only provide you a deep, accurate bass response but also handle the middles and highs decently. The well balanced sound helps you enjoy different styles of music and videos.

·Ergonomics Design】

90° Swiveling Earcups, Adjustable headband, and Memory foam Leather Skin-Friendly Earpads fit your ears. The super lightweight around-ear headset only weigh about 0.5 pounds, comfortable for long-time wearing. You can listen all day long without pressure and headache. Tips: take off the headset every 1.5-2 hrs to have a relax is good for hearing and head. A solid-built carrying case is included to store and protect the headphones.

·Built-in Microphone and Bluetooth】

The high-quality built-in microphone gives a clear voice for phone calls or skype. The newest Bluetooth 5.0 technology makes it easy to pair with iPhone/iPad/Andriod Phone/Laptop/Tablet/Smart-TV or other Bluetooth enabled devices, provides a stable wireless connection and cableless experience. Tips: a 3.5mm audio port cable is included for the plugin use case.

·Type-C Fast Charging】

USB Type-C Port is compatible with your phones or laptops, no need to bring an extra cable when being outside. A single 2.5 hours Fast Charging lasts 18 hours so that you can enjoy your noiseless world and music without worry about the power shortage problem on the long travel.

·AptX Low Latency】


aptX low-latency technology can achieve high-quality sound quality and low latency through Bluetooth. Low-latency, synchronized audio is essential for experiences such as movies and games. , True reproduction of complete audio, bringing unprecedented Bluetooth stereo listening experience.

ANC Wireless Headset Active Noise Cancelling (ANC) Technology mainly focus on cancelling out lower frequency sounds.

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Advanced Compatibility

The headphones bluetooth can easily and quickly connect with smartphones, iPhone, iPad, Air, mini, Samsung Galaxy, Huawei phones, laptops, computers, TV (a Separate Bluetooth adapter needed)and other bluetooth devices within 33 feets(open space no any block).

·Provide Wired & Wireless Modes, you can connect to device by Bluetooth or 3.5mm audio cable

·Kindly Note:You can't use ANC function and control button on wireless headphone when you connect to devices via 3.5mm Audio Cable

·Product Number: ANC-551L

·Bluetooth Version:Bluetooth 5.0

·Playing Time: ANC on Up to 17 hours, ANC off Up to 18 hours

·Charging Time:2.5hours

·Battery Capacity:520mAh

Hi-Fi Sound & Captivating Bass

·Hi-Fi stereo and captivating bass 40mm large-aperture drivers give you crisp, powerful sound and a thumping bass that helps you enjoy your music better.

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true wireless stereo gaming bluetooth earbuds,ambient aac enc headphone.jpg

Active Noise Cancelling

·Our Active Noise Cancelling (ANC) Technology mainly focus on cancelling out lower frequency sounds like the noise of the streets/city traffic/noisy airplane or busy officeetc,so that you can focus on what you want to hear.

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Built-In Microphone and Stable Bluetooth 5.0 connection streams , ANC headphone provides hands-free calls, Which is convenient for you to free yourself from wires.



true wireless stereo gaming bluetooth earbuds,ambient aac enc headphone.jpg true wireless stereo gaming bluetooth earbuds,ambient aac enc headphone.jpg true wireless stereo gaming bluetooth earbuds,ambient aac enc headphone.jpg

Excellent Wearing Comfort

Built with exquisite Soft memory-protein foam leather pads and large ear cups to cover your ears in comfort, even after hours of continuous wear.



Foldable and portable

Ergonomically-designed 90° swivel ear cups & adjustable headband conform to your head shape for a seamless fit. Portable for travel.



Long Battery Life

Bluetooth Headphones are Rechargeable. 520mAh battery, 18 hours of music time and 2.5 hours Fast Charging so that you needn’t to worry the power shortage problem on the long travel.


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Package Contents

·1x ANC Headphone

·1xType C Charging Cable

·1x 3.5mm Audio Cable

·1xQuick Start Guide



Dongguan Koppo Electronics Co., Ltd. is a professional headset audio manufacturer base in Dongguan, China.  With over 20,000 square meters of industrial space and over 1100 onsite staffs, Koppo has been recognized as one of the up and coming headset audio manufacturers in the industry.
COUMI is a brand of KOPPO focusing on high-end Bluetooth headphone. Its product series include AI voice-controlled earphones, TWS earphones, ANC earphones, hearing safety earphone, smart voice EQ earphone, Hi-Res earphones with in-ear, on-ear on-ear,ear hook,over neck types.
Founded by Mr. Ben Wei in 2010, Koppo has established with a vision of becoming a World Class Manufacturer with the expertise of Wireless related technology headset audio products.  Mr. Wei and the executive management team at Koppo have achieved many breakthrough technologies in headset audio products.  With over 100 patents in designs, utilities and inventions, Team Koppo is able to provide flexible ODM / OEM solutions to world renown customers globally.  As an ISO 9001:2008 accredited manufacturer, Koppo holds itself to the highest management standard in production and quality management.  Because of such belief, Koppo has been awarded with many opportunites from many prestige customers throughout the world.
Even though Koppo is considered as a young manufacturer in the industry, Koppo has been growing on steady pace over the years.  As we are heading into 2020, Koppo has already established as an impactful presence in the technology of True Wireless Stereo (TWS) headsets in the industry.  With a strong team of passionate working professionals at Koppo, we are ready to become a premier World Class Manufacturer in innovative headset audio products!




(1)Serve customers & create value for customers.

(2)Program 1: Let us get rich and live a happy life.

(3)Program 2: Provide customers with high-quality products at the fastest speed to meet customer.


(1) Development is a kind of progressive energy and a source of power.

(2)Development is the common aspiration of all employees of the company, and is committed to achieving the ideal.

(3) Development is a necessary condition for the survival of an enterprise, and is where the spirit of unwillingness to lag behind lies.


(1)Honesty is the foundation of being a man and the foundation of a career.

(2) Honesty is the way, wisdom, and the seed of wealth.

(3)Honesty is the most beautiful coat of a person, and it is the most holy flower of the soul.

(4) Honesty is the foundation of trust, and winning the trust of others is your best capital.

(5) Honesty is honesty to family, honesty to friends, trust in the company.





Our Services
Senior professional engineers response for each inquiry timely and accurately.

1. One year Manufacturer Warranty for defective items (except items damaged by wrongly operated after receipt).
2.Defective items must be reported and returned to us within warranty period (the original package is necessary, if possible).
3.Detailed description and demonstration for each defect item is necessary.
4.We don’t repair or replace items expired warranty period. Or buyers will bear the related costs accordingly.


Shipping & Packing
1.DHL,UPSFedExand TNT etc. door to door service.
2. By sea or by air for LCL and FCL.
3. Shipping as appointed forwarder or negotiable shipping methods.
4. Standard export cartons for cargoes.

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Q: how can we guarantee quality?
A:Always a pre-production sample before mass production;
   Always final Inspection before shipment;
Q:When you will ship the product after I finish payment?
A: Usually 3-5days for sample order, 
    10-15 days for bulk order. 
Q:Is the sample available?
Q: How does your factory do regarding quality control?
A: Quality is priority. QC department with professional quality assurance specialist attach great importance to quality.
Q: Please let us know if your product does not arrive in your delivery time frame?
A: This situation never happened in our company till now, because we have professional managerial personnel to overview and control for every parts of production, and we usually have training to every staff.
Q: what services can we provide?
A:Accepted Delivery Terms: FOB,CIF,EXW,FCA,Express Delivery;
   Accepted Payment Currency:USD,EUR,HKD,CNY;
   Accepted Payment Type: T/T,PayPal,VISA,MasterCard;
   Language Spoken:English,Chinese.


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