JAMELO Wireless Microphone, Dual UHF Dynamic Microphone Set Handheld Cordless 15?? STABLE SIGNAL &15 CHANNELS: Dual UHF wireless mic system with selectable 2×15 frequency. Support 15 sets at max for simultaneously using in the same area (Each Set Using in Different Channel), avoiding interference signals at any time, stable signal transmission. ? CLEAR AND CRISP SOUND QUALITY: Our wireless karaoke mic with professional cardioid dynamic capsule, the system can reproduce more excellent, clear, pure and full sound and eliminate background noise and howling. Frequency response 50Hz-16kHz; SNR 96dB; Distortion.