The professional gloves are made of diving cloth, elastic, breathable and fashionable.There is an extension cord with temperature control switch, safer and convenient.Quick heating makes you feel the warmth in 15 seconds, as long as there is an USB charger or power bank which can output 2A current above. Keep you warm in whole winter.It allows you to DIY , no any tools needed, easy to install, just sleeve, stick and plug, ready to use.Scope: Motorcycles handbar, electric motorcycle handbar, mountain bike handbar.Parameters:Weight: about 125 gramsRated voltage: 5VDCPower consumption: 7.5WHeating temperature: 55-65 USB cable length: about 1M/39.37inUSB input current: 2AProduct Size: about 10.3 * 14CM/4.06 * 5.51in,Suitable for handles diameter about 22-30MM/0.87-1.18inFeatures: Ultra-thin heater design, only 0.13mm;USB plug and extension cable design, simple, convenient and safe;Thermostat design keeps the temperature same in whole winter, no external temperature adjustment required.It allows you to DIY , no any tools needed, easy to install, just sleeve, stick and plug, ready to useQuick heating makes you feel warm as soon as possibleThe professional gloves are made of diving cloth, elastic, breathable and fashionable.There is an extension cord with temperature control switch, safer and convenientScope:Motorcycles handbar, electric motorcycle handbar, mountain bike handbarQuick heating makes you feel the warmth in 15 seconds, as long as there is an USB charger or power bank which can output 2A current above. Keep you warm in whole winterPackage Included: 2 * Heating Grips with temperature control switches (with connection cable)vvv