M1 card speakers

Functional description：
Storage media: support the Micro SD / TF memory card in FAT16/FAT32 file system
Music formats: Support all common bit rate MP3 format, with FM radio
Headphone interface: support headphone output
Power supply specification: DC5V USB power adapter or computer USB charging
Lithium specification: 600mAh
Frequency Range: 60Hz-20KH

Color：green/orange
Qty：60

Product parameter:
Response Frequency:60HZ-20KHZ
Rated Power:left/right channel 4W*2（4Ω），bass 15*1（4Ω）
Power Supply Specification:240V
SNR:>82dB
product Size:D210*W10*H10
Color Box Size:D220*W45*H10