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