Weight:   32 gramsDimensions:    126mm x 130mm x 48mmDesign:    Ear-budColours:    Red, White, BlackHardware /DevicesStandby Time:    up to 144 hoursTalk Time:    up to 420 minutesBattery Type:    180 mAh lithium-ion rechargeable batteryCharging Time:    up to 2 hoursCharger:    YesBluetooth Version:    ver 2.0Noise cancellation:     YesOthers:     Other Devices:     Number of button:      4On/Off Switch:    YesVolume Control:    YesMute function:    YesTransmit range: up to 33 ftsConnectivity:    wireless - bluetoothVoice Command:     Voice Dialing:    YesCall Function:    voice dialing, call reject, and last-number redialBluetooth InterfacesHeadSet Profile (HFP):    YesHandsfree Profile (HSP):    YesA2DP Profile (Stereo):    YesAVRCP Profile:    Yesspecification:     Compatible Phone Model: Works with any brand of compatible Bluetooth-enabled phone or music device that supports Advanced Audio Distribution Profile (A2DP) and Audio Video Remote Control Profile (AVRCP)2