The AV-Jefe UR008634 is a perfect wireless system for natural vocal pickup. The system included BHS634 tan earhook headset body-pack transmitter features a PLL (Phase Lock Loop) synthesized .The AV-Jefe UR008BHS634 wireless system also comes with an UR008 receiver, which offers 32 tunable UHF frequencies across a 64MHz bandwidth for interference-free reception. The HS634 with a 2.5mm capsule diameter and the ultimate in low profile, high performance vocal pickup Omnidirectional condenser headset microphone. Learn More