--Automatic and Bluetooth-compatible connection: when taken out from the charging box, which provides stable and fast connection for you.
--Long standby time: you can enjoy your music time from morning till night.
--Waterproof level of IPX6: You can wear it for outdoor sports even in rainy days.
--Supported Protocols: HFP 1.7/HSP 1.2/A2DP 1/AVRCP1.6/SPP 1.2/PBAP 1.0
--Bluetooth-compatible Version: V5.0
.Item Name: Wireless Earphones Material: ABS Bluetooth Version: V5.0 Supported Protocols: HFP 1.7/HSP 1.2/A2DP 1/AVRCP1.6/SPP 1.2/PBAP 1.0 Charging Voltage: DC 5V Microphone Sensitivity: -42dB Working Temperature: -10 Degree Celsius-50 Degree Celsius Frequency Range: 20-20000Hz Earphones Sensitivity: 120dB +/- 5dB Transmission Spacing: 10m Earphones Charging Time: about 1 Hour Battery Life: 220 Hours Single Earphone Battery Capacity: 50mAh (Included) Charging Box Battery Capacity: 300mAh Features: Waterproof, Wireless, Portable Charging Box Size: 11.5cm x 8.5cm x 3.8cm/4.53" x 3.35" x 1.5" (Approx.).
