The useful and simple microphone features body pack transmitter, clip-on lavalier microphone and 1 or 4 34 plug wireless receiver, high sensitivity and 60Hz-13KHz frequency response, VHF receiver. Perfect for giving a speech, teaching lectures, conference speech, promotion, visiting guide.Specifications:Material: PlasticColor: BlackModulation Mode: FMReceive Frequency: VHFFrequency Response: 60Hz-13KHzFrequency Range: 220MHz-270MHzWorking Distance: 30-50 Meters(At Open Area)Power Supply: 1 x AA 1 x 9V Battery(Not Included)Cable Length: 91cm or 35.8inItem Weight: 140g or 4.9ozPackage Size: 28.5 x 9 x 7.5cm or 11.2 x 3.5 x 2.9inPackage Weight: 249g or 8.8ozPackage List:1 x Clip-on Microphone1 x Transmitter1 x ReceiverNote:The microphone plug is specially designed for the transmitter, not for general phone.The battery not included. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.