Lenovo QT81 TWS bluetooth 5.0 Earphone LED Power Display 1200mAh HiFi Stereo Bass Waterproof Sport Headset Headphone with Mic – Black

Features:

TWS BT5.0:
Wireless dual ear design, you can use the earbuds solely or in pairs. BT 5.0 brings higher data transfer speed, more stable connection, and lower power consumption.
Fast & Easy Paring:
Auto power on and fast pairing between left and right earbuds once taking out from the charging case. Easy and quick to pair with BT-enabled audio devices.
Long Battery Life:
40mAh battery in each earbud offers about 5 hours of music playing time. The earbuds can be charged automatically in the 1200mAh charging box.
Hands-free with Dual Mic:
Built-in dual Mic delivers clearer and more real talking sound in stereo mode. BT5.1 chip enables to grasp the detail of voice greatly.
Battery Digital Display:
LED battery digital display can clearly show the battery allowance of the earbuds and charging box. Charging box can work as a mobile power source to charge mobile devices in an emergency.
Smart Touch Control:
Touch control design, no more pressure on your ears. Easy to control music, volume and call, and activate voice assistant.

Specifications:

Name: Lenovo
Model Number: QT81
BT Version: BT 5.0
Transmitting Distance: 10m/33ft (no obstacle)
Drive Unit: 13mm
Frequency Range: 20-20KHz
Sensitivity: 98±3dB
Impedance: 32?
Charging Box Capacity: 3.7V 1200mAh
Earphone Battery Capacity: 2 * 3.7V 40mAh
Music Play Time: about 5 hours (depends on music volume)
Waterproof: IPX4
Color: Black, White
Earbud Size: approx. 4.1*1.7*1.6cm/1.61*0.67*0.63in
Earbud Weight (Each): 4.0g/0.14oz
Charging Case Size: approx. 8.3*4.8*3.0cm/3.26*1.89*1.18in
Charging Case Weight: 70g/2.47oz
Package Size: 14.0*11.2*3.8cm/5.51*4.41*1.49in
Package Weight: 130g/4.58oz

Package List:

1 * Pair of Lenovo QT81 Earbuds
1 * Charging Box
1 * Charging Cable
1 * User Manual