Bluetooth version：V5.3+EDR
-Support protocol：A2DP/HFP/HSP/AVRCP
-Transmission distance：15m
-Charging voltage：5V/1A
-Charging time：about 1 hours
-Battery capacity: 50mAh
-Call playback time：about 7 hours
-Speaker impedance：φ10mm 32Ω
-Microphone sensitivity：-42Db
-Bluetooth version：V5.3+EDR
-Support protocol：A2DP/HFP/HSP/AVRCP
-Transmission distance：10m
-Charging voltage：5V/1A
-Charging time：about 1 hours
-Battery capacity: 50mAh
-Call playback time：about 7 hours
-Speaker impedance：φ10mm 32Ω
-Microphone sensitivity：-42Db

Package Weight: 37g

Package Dimensions: 6.4cm x 3.5cm x 9.8cm

Package Includes:

1 x Ear Hook Bluetooth Earphone
1 x Manual
1 x Micro USB Cable