Feature:1. Bluetooth speakerphone support, builtin microphone, safe answer the phone.2. Support mobile phone A2DP function, connect bluetooth and directly play high-quality mobile music3. Automatically reconnect after starting up, and automatically enter the pairing state.4. Support memory card/U CD to play MP3 / WMA/WAV format music.5. Equipped with USB car charger, output 5V / 3.1A, can charge mobile devices.Specification:Condition: 100% Brand NewItem Type: FM TransmitterMaterial: ABSColor: As Pictures Shown Weight: Approx. 56g/2ozBluetooth Version: 5.0Operating Voltage: 12-24VLimiting Voltage: 9-26VSensitivity :-42 Db/3db 360Operating Current: 45ma (maximum)Standby Current: 25ma (maximum)Frequency: 2.402-2.480 GhzBluetooth Effective Range: 8m/26.2ftSensitivity: -92 DbmRf Output: 4 DbmFM Frequency: 87.5-108.0mhzTransmission Power: 87 Dbuv / 107dbuvFM Distance: 2m/6.6ft.Package List:1 xFM Transmitter1 x Manual