9-30V Motorcycle Car Waterproof USB Charger LED Digital Voltmeter Descritpion: 100% Brand new Waterproof Easy to install Fit for most of Electronic products with a USB plug. Specification: Material: Aluminium alloy Input Voltage: 9 - 30V Output Voltage: 5V Output Currents: 2.1A Cable Length: approx. 145cm Voltmeter measurement range: 9 - 30V Fitment: Any DC 12V vehicle Note: It is not suitable for Sumsung S7562 I739 Package Included: 1 x USB Charger Voltmeter