color to choose ; gray， blue ，yellow， black ，pink

Invisible mic

Working voltage: 3.7 V
Working current: 50mA
Lithium battery capacity: 350mAh
Continuous working hours: 6 hours
Input interface: USB
Size: 27 13 x x 7mm
The carrier frequency 2400MHz - 2483.5 MHz.
Modulation mode: GFSK
Receiving scope and distance: 8m， 360 ¡ã
Support OS: XP， Vista， Win7

12 working days delivery lead time from Malaysia.