https://www.bishopmi.com/product/Lenovo-XT82-TWS-Wireless-Bluetooth-Earphones.html
Lenovo XT82 TWS Wireless Bluetooth Earphones
Lenovo XT82 TWS Wireless Bluetooth Earphones Transmitting Distance: up to 12m (no obstacle) Music Play Time: about 4 hours (depends on music volume)
wireless bluetoothlenovotwsearphones