Bluetooth version 2.1 + EDR, Class II Support bluetooth headset, handsfree and A2DP profiles Standard 3.5mm headset jack Mono+stereo 2 in 1 Voice seperation, noise elimination and wind noise reduction Talk time3-5 hours Standby time: 70-100 hours Dimensions(L*W*T):47.5*18.5*11.3mm Weight: 10.5g 【Close Window】