ESP-822 USB speakers 

Functional description：
USB PC Speaker, support TF card and USB. FM radio, and other equipments, battery 800mAh, with bass film, low power consumption; portable and light, UV technology, is called the "king of radio", easy to carry.

Color：red/orange/yellow/blue/purple
Qty：100

Product parameter:
Response Frequency:60HZ-20KHZ
Rated Power:left/right channel 4W*2（4Ω），bass 15*1（4Ω）
Power Supply Specification:240V
SNR:>82dB