1.USB/SD Audio input
2.Play MP3 audio format
3.Digital Display
4.FM Radio.External Audio Input
5.GH-Power BTL Output

BK-900 4 channel output digital player

1.car play USB disk SD/MMC card for music and FM stereo radio,support MP3 music format.

2.input voltage:DC 12v

3.output power: RMS 500W X 4

4.Frequency response: 20Hz-20KHz

5.Harmoinc Distortion:≤0.05% 4w 1KHz

6.SNR:-85dB

7.High control:12dB+/- 10KHz

8.Bass control:12dB+/- 100HZ

9.the sinal level:220MV 47k

10.RM REQUENCY RANGE:81.5 MHz---108MHz