For sound quality, professional audio processing technology and high-quality whistling suppression template can effectively suppress the problem of whistling Fidelity treble UHF wireless microphone can greatly improve the definition of human voice, ensure the performance quality, and bring you a new auditory feast with high fidelity timbre The in-depth research and development of LED display screen, customized screen, background light source and other raw materials all use the screen equipped by well-known suppliers to condense advanced technology, which has a better performance Filter noise, prevent whistling, restore the original sound, high-quality sound filter cotton, fine workmanship, filter excess noise and restore the sound of nature High strength anti falling wheat adopts heat treatment technical effect filter sponge to effectively filter wind sound and noise Receiver: Model: TW-300 Antenna access: BNC/50 Sensitivity: 15dBuV Harmonic interference ratio: Greater than 80dB False interference ratio: Greater than 70dB Power consumption: less than equal 2W Specification: DC12V/500mA Handheld launch: Frequency range: 500MHz---900MHz Transmitting power: high power 10mw Maximum input sound pressure: 100dB Microphone capsule: dynamic Audio frequency response: 60Hz-15KHz3dB Battery specification: AA1.5Vx2 Battery life: more than 6 hours at normal power transmission Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. size: 14.9x11.3x4.4CM Material:Aluminum alloy colour:Black Package Contents: 1 x Host 2 x Microphone 1 x US plug 1 x Audio cable 4 x battery Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.