Technical specifications: voltage limit 9 - 26 V power consumption 1 W operating temperature -20°C - 50°C supported audio formats: MP3/WMA SNR > 60dB distortion 0.1% version of Bluetooth - BlueCore 3.0 transmission range bluetooth 10-15 microphone range 0-2 m transmission frequency 87.5 - 108 MHz transmission band 20 Hz - 15 KHz output power charging DC 5V / 1A Product features: - hands-free kit - LCD display (shows song title, incoming call number) - clear, pr In the package: - FM transmitter - remote control - audio cable (mini jack type) - original packaging