... 10meters9)Power Source: Built-in Rechargeable Li-ion Battery 80mah1)Bluetooth version: V3.0+EDR2)Support profiles: HSP,HFP,AVRCP,A2DP3 ... 10meters9)Power Source: Built-in Rechargeable Li-ion Battery 80mah1)Bluetooth version: V4.12)Support profiles: HSP,HFP,AVRCP,A2DP3)Sound ... meters9)Power Source: Built-in Rechargeable Li-ion Battery 50mah1)Bluetooth version: V4.12)Support profiles: HSP,HFP,AVRCP,A2DP3) ...