1. It is flame retardant, not easy to deform and features high temperature resistance, corrosion resistance, durability. Extreme speed charging, multiple protection. 2. 12-24V voltage can support motorcycle electric vehicle installation, can be used for mobile phones, tablets, navigation, GPS, etc. 3. The handlebar installation is simple and convenient. And the product has a separate waterproof switch, which is easy to use, very safe and energy-saving. 4. The product with waterproof and dustproof cover, it is safer to use. 5. Specification: Input voltage: 12-24V Output voltage: 5V Output current: 4.2A USB number: 2 Cable length: about 50cm Output power: 21W Working temperature: -20~80 Celsius degree