1) Bluetooth specifications: Version 2.0 and Class II 2) Bluetooth profile supported: headset and handsfree profiles 3) Range of frequency: 2.4GHz spectrum 4) Dimensions (L x W x H): 53.5 x 25.5 x 23.8mm 5) Nominal charging time: within three hours 6) Talk time: up to 10 hours 7) Standby time: up to 200 hours 8) Range: up to 30 feet (10 meters) 9) Weight: 20g