3.7V 1800mAh Charging Case Bluetooth Earphones For Running 9D HIFI

Brand Name:Soungwo
Certification:CE,ROHS,FCC
Model Number:S21
Minimum Order Quantity:100pcs
Delivery Time:7 working days
Payment Terms:T/T, Western Union, PayPal
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Location: Shenzhen Guangdong China
Address: Room 1213A, Huasheng Zhihui Building, South of Xinsha Road, Shajing Street, Bao'an District, Shenzhen, Guangdong
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Product Details

3.7V 1800mAh Charging Case Bluetooth Earphones For Running 9D HIFI


About this item:

Advanced Bluetooth 5.0 Technology

The wireless earphone adopt latest Bluetooth 5.0 technology which can connect to your device quick and easy. And compact designed antenna in wireless earbuds, the speed of signal transmission is double faster than the old version Bluetooth 4.2. The distance range of Bluetooth can up to 10M away.
Hi-Fi Stereo Sound & Deep Bass

The true wireless earphone with 9D full frequency HIFI, release the original sound quality which Truly authentic sound. Deep, accurate bass response and noise reduction. These wireless earphones let you enjoy high fidelity music quality and clear calls sound anytime anywhere.

Ergonomic Design

After more that one hundred test and continuous optimization. The earphone and cochlea fit tightly. Provide three different sizes of ear caps (S, M, L) to ensure you find the right fit for a good wearing experience. Comfortable to wear without pain.

Long battery life

1800 mAh battery with protection, such a large-capacity charging case can support charge for earphone up to 40 times. Quickly charge that it take less than an hour to charge the earphones. So suitable for your travel or Hiking, you can enjoy the amazing music always that will bring more fun to your journey. If your phone is low battery, you also can charge it by charging case, the same as a mobile power bank.


Product ParameterItem model numberS21
Bluetooth Version5.0
Charging WayCharged by magnetic tips in charging case
Working Time3+ Hours
Standby time100+ Hours
Battery capacity2* 3.7V 45mAh(Lithium Polymer)
Operating Distance10 + M
ColorBlack
Date First AvailableFeb. 2020
Product Dimensions1.5X2.1CM(Single earphone)
Item Weight4g(Single earphone)
ManufacturerWEE
Auto pairingSupport
Voice AssistantYes
LanguageEnglish
Storage of paired devices8 Devices that paired
Temperature limitation-16℃~52℃
UsageMusic play, Mobile Phone, Sports, Travel, Driving, Workout, Running, Jogging, Hiking, Biking, gym
Main FeatureTrue wireless, HD Stereo Sound, Stable and fast, Bluetooth, Waterproof and sweat-proof, Built-in Mic, Magnetic charging, One-key callback function

Charging CaseCharging InputDC 5V
Charging time2 Hours
Charging times40 Times
Weight75g
Size8x5x2.75cm
Charge PortMicro-USB

ODM&MOQLOGO printed on the item1000pcs
Customized package2000pcs
Package ContentsTrue Wireless earbud*2pcs
Charging Case*1pcs
Ear-Tips (S/M/L)*3pcs
User Manual*1pcs
Micro-USB Cable*1pcs

Customer questions & answers

Question: Is the sound clear as I often answer phone call while driving?

Answer: My voice comes through pretty clear, as clear as if I was talking straight into the phone though.


Question: Is there latency in the sound when watching/playing game?

Answer: it works very well, I did not feel the delay.


Question: How to tell if earbud is fully charged ?

Answer: Indicate LED light show flashing red when it is low battery. Conversely, flashing red led light go off when it is fully charged.


Question: Does this earbuds can reduce the noise during the call?
Answer: Yes, it has noise cancellation so don't need to worry about environmental noise during the call.

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3.7V 1800mAh Charging Case Bluetooth Earphones For Running 9D HIFI

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