Features: 1. This USB Charger Socket is made by ABS Environmental Protection Material, which is fire-retardant, high and low temperature resistant and anti-corrosive. 2. Including Dual USB charger and voltmeter, dual USB outputs can charge two devices simultaneously, digital voltage display helps to monitor vehicle's electrical safety. 3. It comes with a waterproof dual USB cover, which is fully competent for Outdoor Usage. Specification： 100% new and high quality Material: ABS. Input voltage: 9-24V Output voltage: 1A/ 2.1a Installation: faucet handle or mirror holder Scope of application: General Can be mounted on: bucket, faucet, rearview mirror Wiring method: red wire is connected to the positive pole, black wire is connected to the negative pol Features: simple installation, fast charging, double waterproof Package include : 1x Motorcycle charger Note: Please be aware that due to your computer monitor display the color may have some difference between the picture and the real item. There is 2-3% difference according to manual measurement.