T Tocas Waterresistant Voltmeter & Dual 2.1v USB Ports Charger & 12v- 24V Cigarette Lighter with Switch for Motorbike Car ATV With Water-resistant and Dust-resistant Cover, to protect the Cigarette Lighter & USB Ports & Voltmeter from water and dust Input voltage: 12V-24V  4.0V. USB output voltage: 5V  0.24V/ 2.1A Power extension wire with Fuse protection. Wire length 145cm/ 57in. Fit for 2.2cm- 2.8cm( 0.87-1.1in) Motorbike handlebars diameter Fit for: most phones including Apple iPhone series, Samsung, HTC, Nokia, HUAWEI, BlackBerry, LGENV and Motorola Razr (charging cable). Garmin's GPS, Apple iPod,Pad or any other device charged by USB power 2.1A or less Note: Pls off the Switch of the device when not used. The Switch controll the USB Ports, Cigarette Ligher and Voltmeter