Gooseneck mic on heavy base accepts wireless tx in base

THIS PRODUCT IS FOR ONLINE ORDER ONLY. ST-850The product makes gooseneck microphones go wireless and installation a simple work. The ST-850 is compatible with transmitters such as PT-900B PT-850B PT-920B (G) PT-950B and PT-990B. The product works with transmitter’s power. When transmitters are unavailable simply connect the ST-850 to a microphone cable with phantom power. It works as a normal gooseneck microphone. Automatic wired / wireless mode transformation; no switch is needed. SPECIFICATIONSTypeBack Electret CondenserFrequency Response50~18000 HzPolar PatternSupercardioidSensitivity(at 1000 Hz)Wireless: -66(0.5mV) 0dB=1V/barWired : -56(1.58mV) 0dB=1V/barImpedanceWireless: 2k / Wired : 100MAX. SPL for 1% T.H.D.125 dBPower SupplyWireless: 5VDCWired: 12-48 VDC phantom powerCurrent ConsumptionWireless: 0.5mA / Wired: 5.5mA Output ConnectorWireless: 4P Mini XLR / Wired: 3P XLR (M)SwitchWhen wireless it works as a mute switchWhen wired it works as a on/off switchGooseneck Length.312mmBase Dimension (mm)110.4mm (W)*65.5mm(H)*149.4mm(D)Net Weight1000 grams