USB/SD/TF Motorcycle Audio System MP3 Stereo Speaker Set for Motor Bike/ electric bicycleFeatures:Listen to music， support USB/SD/TF， plug and play.LCD screens displays radio frequency， playing information or clock.Adapt to any motor bike or electric bicycle.The radio collects the bands FM?? AM is not available.waterproof of solid case.Compact unit and attractive chrome plated speakersSpecification:FM:Cover: 87.5-108.0MHZSensitivity: ≤11dBDistortion: ≤0.5%SNR: ≥60dBSupport SD card of 128MB-4GBRadio: Voltage: DC 12VDimensions: 11 X 7.2 X .44cmColor: Blackspeakers:Voltage: 12V DCImpedance: 4 - 8ωFrequency: 165HzEffective frequency range: Fo-12KhzDistortion: ≤5%Maximum out: 2 X 100WConnection: 2 cablesColor:Transparent color with colorful lightDimensions: 8cm x 10cm(diameter x Length)Packing included:1x Motorcycle Audio System Set