Blastking MHU-402MHL Dual UHF Combo Wireless Microphone System

System works with one handheld microphone and choice of headset or lavalier microphone (both included). Modulation Method: p /4 -DQPSK. Frequency Range: 480-530MHz, 2X100/4X50 CH's. Delay Time of Audio Transmission.

Frequency Response: 30 20 Khz.