s:Input voltage: 12-24VOutput : 5V 4.8AProduct model: A9Display screen: LED blue screenSupport expansion: U disk/mobile phone BluetoothBluetooth version: Bluetooth 5.0nsmiion frequency: 87.5-108.0 MHzProduct features:1, with LED display car battery voltage ing2, dual USB interface power supply3, built-in management , ligent s fast charging does not hurt the hine4, the of aluminum alloy material and shell flow line design through hining, ing, sand, oxidation, radium carving and other 18 procees5, the of high-performance master bibi tablet 5-layer circuit protection, more safe to ,6, metal elastic contact design, suitable for different sizes of e outlets, can carry 12V/24V wide voltage input, compatible with most models on the market7, compatible with a wide range of matching, smart phone, Bluetooth and tablet, while meeting the main and deputy driver charging【 Note 】1. The charger will be hot during , and it is normal that it does not exceed 60 degrees at normal room temperature2. When the charger is too current and too stable, it will stop working ar short circuit protection.3. Do not hit the product strongly4. Do not immerse this product in water5. Do not modify or disaemble this product6. Avoid charging in the high temperature or the sun, the temperature is too high will affect the charging effect