Product Description 2.4G Wireless Transmission with up to 20m range, low latency (30ms), works indoors & outdoors. Plug & Play – just connect the receiver to your phone, auto-pairing starts instantly. Portable & Lightweight – fits easily into pockets, handbags, or briefcases. Clear Recording with a noise reduction chip, filtering background sounds. Long Battery Life – 80mAh × 2 microphones 600mAh charging bin, about 6h working time. High Performance – digital silicone mic, -42dB sensitivity, 20Hz–20kHz frequency response, 64dBm adaptive noise reduction.
