Feature: 1. Support hotspot sharing from smartphone, support inserting 2G/3G/4G SIMcard to enjoy the network, also share hotspot to other device. 2. You can use the navigation to concentrate on driving and your family can watch video entertainment. 3. Long press the voice button to enable the product\u0027s voice function. 4. Support car screen touching and keys, and matching the car resolution automatically. 5. Low power consumption, faster processing speed. 6. After insert USB cable, it begin to connect and run automatically. Specification: This product is easy to install, simple to operate and easier to control, safer to drive, and more fun to travel. Features: Support hotspot sharing from smartphone, support inserting 2G/3G/4G SIMcard to enjoy the network, also share hotspot to other device. You can use the navigation to concentrate on driving and your family can watch video entertainment. Long press the voice button to enable the product's voice function. Low power consumption, faster processing speed. Support car screen touching and keys, and matching the car resolution automatically. After insert USB cable, it begin to connect and run automatically. Specifications: Color: black Material: plastics Voltage: 5V BT: BT4.2+5.0 Wifi: 2.4G+5.0G Item size: 80 * 80 * 15mm / 3.1 * 3.1 * 0.6in Package size: 160 * 105 * 27mm / 6.3 * 4.1 * 1.1in Package weight: 200g / 7.1ounce Packing List: 1 * Car Video and Audio Machine Package List: 1 * Car Video and Audio Machine