They are comfortable, waterproof, and require no additional installation. Specifications: Name: Electric handlebar muffs Material: PU leather Color: Black, brown Power cord: 1.6 meters long Temperature: 45C/55C/60C Product size: (approx.)35*26cm/13.78*10.24 inches Packing List: 1 pair*Electric handlebar muffs See more product details 1.Fast Warming: These electric handlebar muffs feature an intelligent chip that allows for fast and efficient warming. With three-speed temperature control, you can easily adjust the heat level for your comfort at any time. 2.Comfort: With thick padded coral fleece lining, these electric handlebar muffs provide hand warmth and protection from wind chill during motorcycle rides. Experience a comfortable ride every time. 3.Weatherproof Solution: With its waterproof and windproof features and high-quality PU leather construction, these electric handlebar muffs offer the perfect solution to keep your hands warm and dry, no matter the weather conditions. 4.Maximize Battery Life: Our electric handlebar muffs are designed to keep your hands warm for over 4 hours, so you can extend your riding time in cold weather. With an automatic heating function cut-off and charge protection, it also extends battery life. 5.Easy to Use: Stay warm and comfortable while riding your electric vehicle with our handlebar heating muffs. No additional installation required, just plug it into the power socket of your EV. Perfectly suited for 48~72V EVs, with button operation for simple and worry-free warmth.