Pyle Model : PUSBMIC43Belt Pack Microphone & Receiver SystemBelt Pack Microphone System with Wireless USB Receiver, Headset Mic & Lavalier Mic Features: Hassle-Free Wireless Microphone SystemSimple Plug-and-Play OperationPerfect for Karaoke & Stage ControlWireless Receiver Built into USB StickBelt Pack Transmitter Sends Audio to Connected SpeakersReceiver Features 3. 5mm Line Output ConnectorDirect Connection to Computer & Active Speaker AbilityUltra-Wide Frequency RangeConvenient ON/OFF Power Switch ControlIdeal for Podcasting, Voice-Over Projects, Stage PerformancesMac & PC Computer Compatible What's in the Box: Belt Pack TransmitterUSB Plug-in ReceiverHeadset MicrophoneLavalier MicrophoneAudio (3. 5mm) Cable (2) x 'AA' Batteries Technical Specs: Mic Element Type: CondenserFrequency Signal System: UHF WirelessWireless Operating Range: Up to 60’ Ft. Dynamic Range: >80dBReceiver Output: >300mVOutput Impedance: 1KΩBattery Operated Belt Pack Transmitter, Requires (2) x 'AA' BatteriesBelt Pack Size (L x W x H): 2. 5’’ x 1. 0’’ x 3. 4’’ -inchesUSB Receiver Size (L x W x H): 1. 0’’ x 0. 5’’ x 2. 8’’ -inchesUsing manufacturing breakthroughs pioneered by Pyle, the PUSBMIC43 system redefines the price point for quality microphones. This belt pack microphone set is engineered for low noise, distortion and coloration. You will be amazed at the quality of the microphones Pyle gives you for the money. Pyle has been in business for over 35 years, and their manufacturing experience and expertise is easy to see - and hear.