Purchase Qty. Reference FOB Price
100-299 Sets US$67.00
300-499 Sets US$65.00
500-999 Sets US$62.00
1,000+ Sets US$59.00
Product Description
130nm digital signal processing chip 4-channel automatic volume control (WDRC) Hyper cardioid pickup pattern microphone Double microphones Middle-power output with low distortion Adaptive feedback cancellation Layered Noise Reduction Automatically saving volume &Mode Multiple ...