Lenovo Thinkplus LP40 PRO TWS Bluetooth Earphones with Microphone Touch HiFi Stereo Earphone Wireless Earbuds Bluetooth Headset with Mic

Features:
BT 5.1 chip ensures stable and fast connection, low power consumption and low latency. 
Adopt 13mm dual-frequency moving coil unit, high frequency analysis, restore sound details without distortion.
After the first pairing, just take the earbuds out of the charging case, the earbuds will automatically connect with your mobile phone.
Semi-in-ear design, fit the ear canal, bringing comfortable wearing experience.
Built-in microphone, AAC/SBC audio decoding, clear sound quality.
Widely compatible with BT-enabled phone, tablet, laptop, etc.

Specification:
Brand: Lenovo
Model: LP40 PRO
Color: Black/White(optional)
BT version: V5.1
Transmission distance: About 10m(barrier-free)
BT working frequency: 2.4-2.480GHz
Sensitivity: 109±3dB
Frequency response: 20Hz-20KHz
Speaker diameter: 13mm
Supported BT protocol: HFP,A2DP,AVRCP
Charging port: Type-C
Battery capacity: 250mAh(charging case), 30mAh(earbud)

Packing list:
1 * Pair of earbuds
1 * Charging case
1 * Charging cable
1 * User manual