Features:* Mono Bluetooth Headset for motorcycle helmet use* Automatically and safely receive phone calls* Bluetooth standard: V3.0 + EDR* DSP noise-canceling feature* Built-in lithium polymer battery* Up to 6 hours talking time* Standby time: 150 hours* Charging time: About 2 hours* Speed: Up to 120KM/HSpecifications:* Size: 285*85*40mm* Weight:0.094kg* Material: ABS plasticPackage Includes:* Bluetooth headset x1* Charging cable x1* Manual x1