- For simultaneously charging up to 3 USB devices in a car when on the go ,- For quick charge/power supply of up to 3 devices like smartphones, MP3 players or navigation systems that can be supplied with power via a USB port ,- Ideal for on the go (a laptop or computer is not required for recharging the battery) ,- Compact, unobtrusive design ,- Suitable for the electrical system of cars and lorries (12-14V), connection via the cigarette lighter socket - Number of USB Charging Connections: 3 ,- Charging Current: 4400 mA ,- Power: 22 W ,- Input Voltage: 12 - 24 V ,- Output Voltage: 5 V ,- Colour: Black/Silver ,- Recommended Use: Mobile Phone 2 years legal warranty only