Compatible for Phone, GPS & other phones with 3.5-6 inches screen. USB Charger: Equipped with a 5V 2A USB charging port, quick speed and high efficiency charging, never worry about cellphone/GPS short for battery when on a road trip. Over Load Protection: Auto power off when the charging voltage exceed 30V. Engineering Osteology Design: TWO rolling balls, 360 degree free rotation, create your own comfortable angle. Four frosted rubber feet will firmly hold your phone even in high speed. Easy Installation: Take one motorcycle rear view mirror off, put the hole of the Bike Mobile Holder Charger through the mirror, and re-install the mirror. Or you can use 8mm/10mm screws to install. Fit for 12-30V motorcycle, electric bicycle, scooter, ATV, car, etc. Material: Aluminum Alloy, ABS, Silica Gel Color: Black / Silver Size (Approx): 11×6×8.5 cm/4.3×2.36×3.35 inch Wire (Approx): 110cm/43 inch Mounting Hole Size: 8mm/10mm Input Voltage: 12V-30V Output Voltage: 5V Output Current: 2A Wattage: 120W Brand No Brand SKU 100378564_NP-1020658611 Model other