VOCOPRO UH-580-4  Wireless Headset System 4 Wireless body packs included with headset mics. 4 Independent XLR MC Outputs or 1 Mixed 1/4" Output. Individual Volume Controls for Precise Vocal Balancing 4 Wireless body packs included with headset mics. 4 Independent XLR MC Outputs or 1 Mixed 1/4" Output. Individual Volume Controls for Precise Vocal Balancing 4 Wireless body packs included with headset mics. 4 Independent XLR MC Outputs or 1 Mixed 1/4" Output. Individual Volume Controls for Precise Vocal Balancing