Lenovo QT81 TWS Wireless BT Headphone Semi-in-ear Sports Earbuds Waterproof Sweatproof Earphone with Digital Display Screen Black

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Features:
The new generation of BT 5.0 chip has stronger processing performance, faster and more stable connection, low latency, supports binaural high-definition calls to ensure that every call is clear and smooth.
Professional three-frequency adjustment, strong and shocking low frequency, clear intermediate frequency level, loud and delicate high frequency, bringing full and stereo listening experience.
The digital display screen can grasp the power of the charging case and the left right earphones in real time.
Simple CD fingerprint touch operation can easily realize the operations of playing music, answering and hanging up the calls, etc.
The left and right earphones are dual-channel transmission, and the master-slave mode can be switched at will, bringing a different true wireless headphone experience.
Long endurance time, the 1200mAh charging case provides 30 hours battery life, no need to worry about power shortage.

Specification:
Brand: Lenovo
Model: QT81 
Type: Semi-in-ear
Color: Black/White(optional)
BT version: V5.0
Transmission distance: 10m
Noise reduction version: CVC8.0
Waterproof level: IPX4
Standby time: About 30 hours
Music time: About 30 hours
Battery capacity: 1200mAh(charging case), 40mAh(headphone)

Packing list:
1 * Pair of earbuds
1 * Charging case  
1 * Charging cable   
1 * User manual