Features:
BT 5.0 technology ensures higher data transfer speed, stable and fast connection, and low power consumption.
True wireless dual-ear design, left and right earphone channels are separated. It can be used solely or in pairs.
Touch control design, no more pressure on your ears. Easy to control music and calls, and activate voice assistant.
Built-in Mic on both earbuds with intelligent noise reduction delivers clearer talking sound in stereo mode.
A 300mAh charging case can charge and store the earbuds. 40mAh battery in each earbud offers about 3 hours of music time.
3.8g lightweight and mini size fit well to your ear canal, providing a long time wearing comfort and stability.

Specifications:
Brand Name: Lenovo
Model Number: XT91
BT Version: 5.0
Transmitting Distance: 10m/33ft
Drive Diameter: 8mm
Frequency Range: 20-20KHz
Sensitivity: 90±3dB
Impedance: 32Ω
Charging Case Battery Capacity: 3.7V 300mAh
Earbuds Battery Capacity (Each): 3.7V 40mAh
Working Time: about 3 hours (depends on music volume)
Color: Black, White (Optional)
Earbud Weight (Each): 3.8g/0.13oz
Package Size: 13.9*8.9*3.0cm/5.47*3.50*1.18in
Package Weight: 80g/2.82oz

Package List:
1 * Pair of Earbuds
1 * Charging Case
2 * Pair of Earcaps
1 * Charging Cable
1 * User Manual (English/Chinese)