Original Lenovo XT91 Intelligent Noise Reduction Mini Wireless Bluetooth Earphone with Charging Box & LED Power Digital Display, Support Touch & HD Call & Voice Assistant & Dual-mode Earphone (Black)

1. Bluetooth 5.0 chip, faster and more stable connection, no sound delay during gaming
2. Intelligent noise reduction, high-definition call
3. 8mm dynamic drive, restore sound details, cinema-level stereo effect
4. One-key touch, simple operation, support high-definition call, music, voice assistant and other functions
4. Dual-mode headphones, both sides are the main headphones
5. Pick up the headset from the charging box to automatically connect; use with the charging box for long battery life
6. The LED digital display screen displays the charging box power in real time
7. Fits to the ear canal, comfortable and reliable to wear
8. Widely compatible with Android and IOS system devices with Bluetooth
9. Life waterproof

Product parameters:
1. Bluetooth version: V5.0
2. Wireless propagation distance: 10m
3. Drive unit size: 8mm
4. Charging box battery capacity: 300mAh
5. Life time (use with charging box): 300 hours
6. Play time: about 5 hours
7. Standby time: about 33 hours
8. Talk time: about 5 hours
9. Frequency response range: 20Hz-20KHz