UHF Fixed Frequency Wireless Microphone System. 2 Fixed Frequency Ranges. Twin Handheld System. Low Battery Consumption. LED Backlit on both Transmitters & Receiver. High Quality Dynamic Microphone Capsule. Independent Volume Control. 50M Operation DistancePower Supply: 12Vdc Frequency: 863.1/864.1MHz (QWM11V2-1) & 863.7/864.9MHz (QWM11V2-2) Range: 50m. The QWM11 set is a superior quality VHF microphone with a true diversity receiver- this gives improved performance & keeps drop out to a minimum. This set comes with 2 hand-held Mics- receiver & all necessary parts including batteries. This Mic can be connected to a mixer with balanced XLR or unbalanced jack. Two versions are available in different frequency ranges.. uhf radio microphone-dual uhf radio microphone-radio microphone-wireless microphone