Pro Dual Wireless Cordless DJ Karaoke Public Address PA Mic Microphone System. Up to 100 Feet range. Audio distortion: less than 1%. S/N ratio: better than 80dB. Operating temperature: 0-45 degrees Celcius. RF output power: 8mw (50mw max). Battery: 2 x 9V battery. Dimensions: length 250mm, diameter 53mm. Reception mode: super heterodyne space diversity >25mV. […]... Read More