Bluetooth v5.3, support most bluetooth devices and lower power consumption
250mAh charging case can fully charge 2 earphones around 5 times, give you more 24 hours of music time
With waterproof technology, no longer need to worry about water and sweat
13mm dual drive units, enjoy strong 9D deep bass music sound
Popular touch control function, support switch songs, phone call and subscriber voice call
Specifications:<br>Item Name: TWS Bluetooth Earphones<br>Brand Name: Lenovo<br>Model Number: XT81(NEW)<br>Bluetooth Version: 5.3<br>Material: ABS<br>Waterproof rating: IPX5<br>Earphone Type: In ear<br>Playback Control: Touch Control<br>Transmitting Distance: Up to 10m (no obstacle)<br>Dynamic driver: 13mm<br>Frequency Range: 20-20KHz<br>Speaker impedance: 32Ω±15%<br>Charging box battery capacity: 3.7V 250mAh<br>Earbuds Battery Capacity (Each): 3.7V 30mAh<br>Music time: About 4 hours (depends on music volume)<br>Charging time: About1.5 hours<br>Color: Grey/Black