Features: brand new and high quality With LED display to display car battery voltage, call hands-free, FM transmitter, Bluetooth5.0 lossless connection, music, navigation broadcast, U disk MP3 playback. Dual USB ports provide power at the same for time, built-in management chip, intelligent shunt fast charging without hurting the machine. It is made of aluminum alloy material and streamlined design of the for shell through 18 processes such as CNC machining, polishing, sandblasting, oxidation, and laser carving. It adopts high-performance main control chip 5-layer circuit for protection, which is safer when used together. Metal elastic contact design, adapt to different sizes of cigarette lighter ports, can carry 12V/24V wide voltage input, for wide matching, for smart adaption to mobile phones, Bluetooth-compatible and tablets, while meeting the main and co-driver charging. Specifications: Material: Plastic+Metal Size:Approx.5x8cm/1.97x3.15inches Color:Black/Blue/Golden Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Car FM Transmitter