1、[Real Time Monitoring] The bodypack transmitter has real time monitoring function, which can monitor whether the sound is recorded normally to ensure stable work. 2、[UHF Transmission] Digital UHF sound transmission, preset with 16 groups of adjustable frequencies, suitable for microfilm, shooting live interviews, video recording, program interviews, etc. 3、[Noise Reduction] This monitor system bodypack transmitter is designed with professional noise reduction circuit, broadcast grade sound quality, signal to noise ratio of ‑100dB. 4、[Universal Compatibility] The sound beltpack transmitter is widely used, compatible with cameras, SLRs, recorders, smartphones, etc, with 3.5mm microphone interface. 5、[Multi Function And Durable] Stage monitoring bodypack transmitter has a volume adjustment knob and LED display, making it easier to use. Premium ABS body, lightweight, wearable and durable. Item Type: Bodypack Transmitter Material: ABS Color: Black Frequency Range: 660-690Mhz Scope of Application: Suitable for EM D01 EM D02 EM D04 Stage Monitoring System Host Battery: 2 x AA (Not Included) 1 x Bodypack Transmitter