Description: 1. Shell material: ABS 2. Shell surface technology: fine lines, high gloss 3. Features: Appearance patent. Large white screen, separate voltage display 4. Input: 12-24 5. Output: 5V-1.0A or 5V-3.0A; 6. Total power: 7.5-20W 7. Output port type: USB, type-c 8. Protocol: Bluetooth 5.0 9: Hardware functions: FM transmitter, Bluetooth, USB charging, reading U disk, color lights, EQ function Specifications: Support ambient light Support Battery voltage detection Support Auto power off memory function Support FM stereo transmission technology Support U disk playback Support WMA, MP3, WAV, FLAC music format files Wireless support A2DP, AVRCP, HFP, HSP Wireless support hands-free calls Support Wireless compatible stereo music DSP technology Dual USB 3.0A 1A, Tpye-c quick charge One key EQDual screen display Package Included: 1* Bluetooth FM Transmitter About 2USB car chargerproduct introduction: Description: Dual USB ports to charge both devices simultaneously The LED display monitors the car battery voltage in real time (when no device is connected for charging); the charging current is displayed when the phone is charging 3.1A ultra high current output, based on intelligent distribution of different devices, It immediately adjusts the output according to the saturation of the battery and charges you specification: Name: Car Charger Material: flame retardant ABS plastic Input voltage: DC 12V-24V Output voltage: 5V-3.1A Output current: 3.1A Size: 33*59mm Color: Silver Blue Black Gold Red Specifications: The device is strongly protected at high speeds.Unbelievable quality, more durableIntelligent surge protection through fuse mode, dual smart chip with high-speed chargingBuilt-in overcurrent, overvoltage protection, support trickle charge, guarantee charge statusThe intelligent cooling system dissipates the heat of the internal components of the car charger,And maintain the proper temperature state for normal operation and extended life.Wide compatibility for most mobile/tablets/MP3/MP4 and other digital devices Package Included: 1* car charger Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item.Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement.Please leaving a message before you give the bad