Feature: 1. Support USB port charging, the current is 5V‑3.1A. 2. LED screen, high definition, can display frequency points. 3. Support power off memory function, practical to use. 4. Bluetooth 5.0 version, stable and professional performance. 5. Support Chinese and English prompt voice switching. 6. There is a memory card slot, support memory card to play music. 7. With USB port, supports USB flash disk memory to play music. 8. With Bluetooth function, support mobile phone to connect Bluetooth to play music, support mobile phone navigation voice broadcast, support hands‑free phone calls (no need to hold a mobile phone to talk while driving, the sound is played from the car stereo). Specification: Condition: 100% Brand New Item Type: FM Transmitter Material: ABS Color: As picture shown Power Consumption Rate: 0.5W Working Temperature: 0 - 60 ℃ Working Temperature: 0 - 90% Frequency Response: 20hz - 15khz Audio Format: MP3 Support Bluetooth Protocol: HFP/HSP,OPP,A2DP/AVRCP,PBAP SNR: 68db Bluetooth Version: V5.0 + EDR Bluetooth Sound Processing: Sound Body Sound: A2DP(Advance Audio Distribution Profiles) Bluetooth Transmission Distance: 10 - 15m/32.8- 49.2ft Fm Transmission Frequency: 87.5 - 108.0mhz Usb Output: 5V / 3A Bluetooth Operating Instructions: 1. Bluetooth Pairing Connection Insert the product into the car cigarette lighter power socket, Bluetooth automatically enters the ready-to-pair state, turn on the Bluetooth function of the mobile phone, the mobile phone will search for the device name "BT Carkit-30" of this product, 2. Select "BT Carkit-30" and connect to it, some mobile phones will ask for the connection password of "0000" 3. After the connection is completed, the voice will prompt "pairing completed" At this time you can perform various operations, hands-free Bluetooth can remember the connected mobile phone, and it will automatically connect the next time you turn on 4. Play mobile phone music (need to switch to A2DP mode) After the connection is completed, the music in the mobile phone can be played, and all the sounds in the mobile phone can be played from the car stereo. ● "" Short press to play the previous song, long press to decrease the volume ● "" Short press to play the next song, long press to increase the volume ● "" short press to play / pause 5. Bluetooth hands-free (in Bluetooth mode) ● Make a call: In the connected state, the phone directly dials the phone number, and the sound comes out of the car stereo after being unplugged ● "" short press to answer the call, press twice to repeat the uncoded call, short press to hangs up during the call, long press to reject the call Instructions: 1. Select the FM transmission frequency 2. Short press the "M" button, then press "" or "" to select the frequency, adjust the FM transmission frequency point in the range of 87.5 ~ 108Mhz, ensures that the car Bluetooth and your car FM receive the same frequency point The effect of using, try to use the frequency point of the local no radio station), 3. Play music from memory card or U disk After turning on the power, insert the memory card or U disk with the downloaded song into the corresponding socket of the product, it will automatically detect the MP3 file and play it, press "" to select the previous song, press "" to select the next song, press " "play / Pause, 4. Volume adjustment Long press "" or "" to decrease or increase the sound, the volume level can be displayed when adjusting the volume, 5. Call Priority Bluetooth call > Bluetooth music playback = play U disk = memory card music playback mode, 6. Fast Charging Function The USB port outputs 5V / 3.1A, which can reach 2.4A when charging the for IOS system device, and can output current 500mA-1000mA when charging the for Android system (determined by the mobile phone device setting protocol). At the same time, this USB interface is also a USB reading interface. . Package List: 1 x FM Transmitter1 x Manual