The car transmitter is a smart device that allows you to increase the functionality of even the simplest car stereo. The way it works is that we select a radio frequency on the car radio that is not broadcast by any radio type RMF, Radio Zet, etc. Then we set the same frequency in the transmitter and at this point the transmitter sends data directly to the car radio and from the radio directly to the car speakers. Simply connect the transmitter to your phone via Bluetooth and your favorite songs played from your phone will be sent directly to your car speakers. Songs can be played from Youtube, Spotify, stored in the phone memory and all others that can be played on the phone. The transmitter we offer has Bluetooth 5.0 with EDR + A2DP, which ensures excellent audio transmission without interference. In case of incoming calls, the transmitter will automatically switch from music playback to phone calls. When you insert an SD card into the transmitter or connect a flash drive to one of its USB ports, the device will automatically switch to the appropriate recovery mode. TECHNICAL SPECIFICATIONS: High quality work 3 ways to play music: bluetooth, SD card, AUX Supported music format: MP3, WMA, WAV, FLAC Bluetooth 5.0 + EDR FM range: 87.5MHz - 108.00MHz A2DP - high quality audio distribution EDR - advanced noise reduction Supports memory cards up to 128GB Frequency response: 20Hz-15Khz Bluetooth microphone effective distance: 0.5 - 2m Range: 10m SNR: 60 dB USB 1 output: 5V / 2.4A USB 2 output: fast charging WITH QUICK CHARGE 3.0 5V 3A MAX Phone call kit with built-in HD microphone Remembers songs, when turned off plays the song at the moment when it is turned off Backlight: RGB 12V or 24V power supply, ideal for cars and trucks Cable length: 110 cm Battery level reading function Fixing to the ventilation grill or to the cabin with an adhesive base