Features:- Bluetooth function， play music from your phones via bluetooth- Support hands-free calls， answer or hand up the phone after connect the radio via bluetooth- Support MP3/WMA/WAV/FLAC/APE file playback from USB/SD Card (Maximum support 32GB)- Support FM Radio， automatic frequency adjustment- USB/SD Card Port- Clear Display LCD CLOCK- Rotary Volume Control- MP3 randomized， 10 track up / down playback- Electronic control volume treble， bass， balance and fader- Multiple EQ Scene Selection: jazz， rock， pop， classical， etc.- Mute and Loudess control- L / R RCA audio output jacks- 4-channel high power output (4 loud speaker) Specifications:Panel Size: 188 x 140 x 58mm (Wide*Deep*Height)Installation Dimension: 178 x 126 x 50mm (Wide*Deep*Height)Quantity: 1 piecePower Supply: 12VMax. Power Output 60W×4FM Rrequency Range 87.5-108.0MHZOperating Temperature: -20~+60Harmonic Distortion: ≤0.3%Speaker Impedance: 4ΩFrequency Response: 20~20000HzEnglish Manual: Yes Package:1 x Packing Box1 x Bluetooth MP3 Player1 x Cable1 x English ManualMounting Accessories Included