"Specifications:
-Color: Black
-Bluetooth version: CSR4.1
-Job scope: > 10 meters
-Standby time: > 180 hours
-Life time: > 3~6 hours
-Charging time: 1-2 hours
-Support agreement: A2DP, AVRCP, HSP, HFP
-Frequency response: 20 hz - 20 KHZ
Package list:
1 x Bluetooth Earphone
1 x USB Charging Cable
1 x User Manual"