Production DescriptionIntroduction 1. Wireless microphone system with powerful and stable signals using UHF frequency band With 30 selectable channels in the 550-579MHz frequency range for interference-free operation wireless range up to 65m(214 ft). 2. Adopting high-definition sound lavalier microphone Lapel clips design for attaching them to clothes which make it easy for you to move.Signal is transmitted stably giving you a great sound effect. 3. Transmitter with LCD display to show battery status channels etc. Come with a camera shoe mount it can be directly fixed to your DSLR camera and other shooting equipment. 4. Receiver with 3.5mm interface comes with two 3.5mm cable it can work with your laptop/PC/DSLR Camera/Amplifier/DV/Camcorder/Smart phone/Mixer etc. 5. This system is a perfect fit for computer/smart phone recordingDSLR videography field recording and interviews broadcast TV ENG providing dependable audio broadcasting and recording. Features: BG-121U Professional wireless photographic and recording microphone for photography video recording news interview and classroom lectures and other occasions with the transmitting distance of 65 meters. Works well with medium and high-end DSLR camera and camcorder etc. UHF frequency response band and interference-free circuit feature strong ant-interference capability;Noise value control system and noise control technology can lary reduce noise and dynamic range. Can be mounted on belt or camera easily; Lightweight which are convenient to carry and wear. System Specification Modulation ModeDigital Frequency Modulate Frequency RangeUHF 550-579MHz Preset Frequency30 Frequency Response75Hz-18kHz 3dB Max.Devlation Range50kHz with level limiting T.H.D.<1.0%@1kHz S/N>98dB Working RangeUp to 65m RF Carrier Stability0.005%-10-50 Receiver Dimension110x65x25mm Power Supply3V Transducer:Condenser Microphone Set Type:Transmitter Sets Style:Hanging Microphones Use:Stage Performance Wireless Microphone Origin:CN(Origin) Package:Yes Model Number:BG-121U Polar Patterns:Cardioid Certification:NONE Diaphragm:Large Communication:wireless