The device transmits waves to the car radio, which plays sound from a player connected to the transmitter, an SD memory card, or a USB flash drive, for example. flash drive. Additionally, it functions as a hands-free set thanks to the built-in Bluetooth.Product Features: - HI-FI 3D sound - full frequency range 25Hz - 44 kHz - number of channels: 210 - file support: MP3, WMA - memory support: PENDRIVE, SD, MMC - connectors: USB, mini jack - adjustable head - 360° - LCD display (blue) - EXTRA BASS - built-in equalizer - full control of transmitted sound quality (11 preset settings) - option to manually adjust volume level relative to noise - option for direct transition to any track (by entering the number) - 2 remote controls - standard, 21 keys + steering wheel controller - reads files grouped in directories - remembers the last played track - random track selection - bluetooth 2.0 - handsfree set - Bluetooth voice: AD2P Technical specifications: - power supply: 12V / 24V (cigarette lighter socket) - number of frequencies: 210 - remote control: 21 keys + steering wheel remote control - connector: USB (MP3/MP4, PENDRIVE) and MINI-JACK - SD and microSD card reader The set includes: - FM transmitter - remote control - steering wheel remote control - user manual