Description:\r \r and high quality\r Dual USB port charger, supports smart IC charging, can charge two USB devices simultaneously.\r With a digital LED display that shows the correct battery voltage status in real time, also shows USB output voltage and current\r Supports voltage range Compatible with DC 12-24V, suitable Compatible with various cars, such as trucks, SUVs, off-road vehicles, buses, etc.\r 2-port full-function socket Compatible with the car (does not support light function)\r Two 12V/24V cigarette lighter sockets (Compatible with DC socket) provide a total power of up to 120W, enough Compatible with simultaneous use of a variety of portable devices in your vehicle.\r USB car charger Compatible with phone, Huawei and more.\r \r Specifications:\r Product type: Dual USB adapter charger + digital LED voltmeter\r Material: Plastic\r Color: Black\r Size: 13x7.5x3.1cm\r (1) USB charger:\r Operating voltage: Compatible with DC 12V-24V\r Interface: 2x USB\r USB output 1: Compatible with DC 5V 3.1A\r - Widely used with electrical equipment Compatible with power Compatible with supply: Vehicles, GPS, mobile phone, camera, mp3.\r (2) Voltmeter:\r Operating range: Compatible with DC 10-30V\r Display: LED digital display\r Quantity: 1 set (other accessories shown in the picture are not included)\r \r Note:\r 1. Transition: 1cm=10mm=0.39inch\r 2. Please allow 0-2cm error due to manual measurement. Please make sure you do not mind before you bid.\r 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r 4. No retail Compatible with packing\r \r Package includes:\r 1 X Dual USB LED voltmeter car charger