Features:  Connection: FM FM is connected to the car, the frequency of the product is the same as that of the car radio and can be connected.  Stable Transmission: Smart BT 5.0, DSP and A2DP noise reduction stereo processing technology transmission is faster and more stable. After BT connection, play the songs in the mobile phone, compatible with mainstream music apps. Built-in noise reduction microphone, using noise reduction processing, Bluetooth hands-free calls are clear.  Navigation Broadcast: The navigation sound of the mobile phone is connected to the machine through Bluetooth, and transmitted to the car stereo, and the sound is sent out through the car to increase the navigation volume.  TF card/U disk playback: Support TF card/U disk MP3 playback, download songs to TF card/U disk, switch to music mode to play songs in TF card/U disk.  USB Port Charging Output: In addition to being able to read the U disk, the USB port can also charge other devices. The output voltage is DC5V/1A, which can meet the charging requirements of most electronic devices.  Compatibility: Car compatibility, support cars with 12V-24V cigarette lighter and radio in normal use. Compatible with Android, iOS phones.  The Package: 1X Car FM Transmitter, 1X Remote Controller, 1X User manual.    Specifications:  Rated voltage: 12V/24V  Limit voltage: 9V-26V  Format: MP3 WMA  Frequency: 20Hz-15Khz  BIT Mic range: 0.5-2M  FM Trans. FRQ: 87.5-108Mhz  Power: 6W  Work Temp: 0-50 Degree  SNR: >60dB  BT: 4.1  BLT Trans. Dist. : 10M  Host size: Approx.56X55X70mm(2.20*2.16X2.75in)  Item weight: About.45g(1.58ouce)