Lenovo QT81 Bluetooth headphones white

BT 5 technology provides higher data transfer speed, more stable performance and lower power consumption.
With TWS technology, both the left and right earphone channels are separated.
You can use the headphones alone or in pairs.
Automatic quick pairing between the left and right headphones when removing the charging box. Quickly and easily connects to BT compatible audio devices.
Equipped with a 1200 mAh charging box to charge the headphones.
Features: Brand Name: Lenovo.
Model Number: QT81
Bluetooth version: Bluetooth 5.
Transmission distance: 10m
Drive unit: 13 mm.
Frequency range: 20-20 kHz.
Sensitivity: 98 ± 3dB
Impedance: 32Ω
Charging box capacity: 3.7V 1200mAh
Headphone battery capacity: 2 x 3.7V 40mAh
Music playback: approx. 5 hours (depending on the volume of the music).
Waterproof: IPX4.
Color: Black and White