Benefits: has SD/MMC card slotPlaybaon enables you to repeat the last song playedRadio scanning functionLCD screens displays radio frequency, playing information or clockCompact unit and atctive chrome plated speakersThis audio system for your bike or scooter is and boxed and includes speakers, and Specifications (FM):FM tuning range: 87.5MHz - 108MHz terminal: external connectorFrequency intermediate: 10.7MHzNoise signal ratio: ≥50duner Specifications (Play Back):Noise signal ratio: ≥50dB separation (@ 1kHz): ≥23dBHarmonic distortion (@1kHz): ≤5%Frequency response: (100Hz - 10kHz) ±6dB