Awei True Wireless Earbuds (T35)

Bluetooth Version: V5.1 Profile Support: HSP,HFP.A2DP.AVRCP Stand-by Time: 300 h Talk Time: 7-8 h Music Play Time: 7-8 h Charging Time: 1.5 h Charging Voltage: DC 5V Frequency Range: 2.400G-2.483G Ambient Temperature: -10/+50°C Transmission Distance: 10m Earbuds Battery Capacity: 40mAh / 3.7V Charging Case Battery Capacity: 400mAh / 3.7V