4.8A Dual USB Car Charger, with LED Display, Voltmeter, Mobile Phone Adapter, for Car, Motorcycle, Boat Features: 1: This is a 4.8A intelligent fast charger, with voltage display, high voltage warning, it can display the charging rate, there is a switch that can freely switch the display mode and power on/off. 2: Lightly press the switch to power on, it can display the real-time voltage after the full screen lights up for 2 seconds, then press the button again to switch to the power indicator power supply. The two display modes can be freely switched by the button, press and hold the switch for two seconds to turn off the device. After turning off the power, it means the device cut off the power input, then achieved the effect of saving electricity. 3: When the input voltage exceeds 14.6V, the red light is on (warning function, it indicates that the input voltage is too high) 4: When the device is powered on and USB charging is done, the color screen flow shows that it is charging; it will reflect the charging speed according to the color screen rate. When the mobile phone is completely loaded, it turns on full screen. Two minutes later, it will show real-time voltage again. The display mode can be switched to a separate red light by lightly pressing the switch. Press the switch and hold it down for two seconds to turn off the device. 5. Multi-purpose: power supply for mobile phone, tablet PC, GPS and other USB devices, Wide Application: cars, motorcycles, ATVs, SUVs, UTVs, boats, etc. Specification: Product material: ABS Product color: Black Input voltage: DC 12V - 24V Output: 5V 4.8A Size: 50x36.8mm Package contents: 1 * Dual USB Car Charger 2 * terminal