FM transmitter with Bluetooth and hands-free function. The device transmits waves to the car radio, which plays sound from a player connected to the transmitter, a microSD memory card, a USB flash drive, or a phone connected via Bluetooth. Product Features: - Bluetooth version: 2.1 + EDR - A2DP support - microSD card reader - built-in microphone - FM frequency: 87.5-108MHz - USB socket - for charging or connecting a flash drive - charging current: 5V/2.5A - input voltage: 12-24V - transmission bandwidth 20Hz - 15 kHz - file support: MP3/WMA - memory support: pendrive, microSD - LCD display (backlight color red and blue) - AUX input (3.5mm minijack cable included) - music playback function via Bluetooth - receiving/rejecting/ending calls and redialing using a button on the device - the device remembers FM frequency and volume level dimensions: 10x8x2.5cm