{"product_id":"wireless-headset-microphone-for-teaching-meeting","title":"Wireless Headset Microphone for Teaching Meeting","description":"Features:\u003cbr\u003e\n1: Use the 670 to 69OMHz frequency band (channel A: 682-690MHz; channel B: 670-680MHz), strong anti-interference. \u003cbr\u003e\n2: Adopt 24Bit\/48KHz high-performance audio dedicated A\/D and D\/A processing. \u003cbr\u003e\n3: Use ID code + frequency for data encryption and frequency. \u003cbr\u003e\n4: With automatic mute and impact elimination circuit, to avoid the impact and noise of switch machine. \u003cbr\u003e\n5: The effective distance of wireless transmission is 20-50 meters. \u003cbr\u003e\n6: Simple operation interface,Very few adjustable parts, can completely avoid misoperation causedmalfunction. \u003cbr\u003e\n7; Very high pickup sensitivity, excellent sound quality, so that you can speak or sing easily. \u003cbr\u003e\n8: Multiple devices can be used at the same time without interference and frequency channeling. \u003cbr\u003e\n9: With power and wireless indicator lights. \u003cbr\u003e\n10.Support single frequency. \u003cbr\u003e\n  \u003cbr\u003e\nSpecification:\u003cbr\u003e\nTransmitter technical specifications:\u003cbr\u003e\n1: Frequency range 670^690MHz. \u003cbr\u003e\n2: The number of channels is 10 (conservative value) each time when pairing, the ID code changes randomly, within the frequency range set by the manufacturer. \u003cbr\u003e\n3: Oscillation mode DSP chip frequency lock. \u003cbr\u003e\n4: Frequency stability ??10ppm. \u003cbr\u003e\n5: RF power 10dBm. \u003cbr\u003e\n6: Audio frequency response 40~ 1 8000Hz. \u003cbr\u003e\n7: Distortion degree 0.5%. \u003cbr\u003e\n8: Battery specification 3.7V lithium battery. \u003cbr\u003e\n9: 3 hours of battery life (depending on battery type and capacity). \u003cbr\u003e\n \u003cbr\u003e\nReceiver technical specifications:\u003cbr\u003e\n1: Frequency range 670~690MHz; \u003cbr\u003e\n2: The number of channels is 10 (conservative value) each time when pairing, the ID code changes randomly, within the frequency range set by the manufacturer. \u003cbr\u003e\n3: Oscillation mode DSP chip frequency lock; \u003cbr\u003e\n4: Rate stability 10ppm; \u003cbr\u003e\n5: Receiving sensitivity -95~-71dBm; \u003cbr\u003e\n6: Audio frequency response 40~ 18000Hz; \u003cbr\u003e\n7: Distortion 0.5%; \u003cbr\u003e\n8: SNR 90dB; \u003cbr\u003e\n9: Audio output 300mv (maximum); \u003cbr\u003e\n10: Battery specification 3.7V lithium battery; \u003cbr\u003e\n11: 4 hours of battery life (depending on battery type and capacity); \u003cbr\u003e\n \u003cbr\u003e\nPackage Included:\u003cbr\u003e\n1 x Headset microphone; \u003cbr\u003e\n1 x Receiver; \u003cbr\u003e\n1 x USB power supply line; \u003cbr\u003e\n1 x 3.5 plug conversion","brand":"GreenZech","offers":[{"title":"Default Title","offer_id":42042001195178,"sku":"3654659126269","price":63.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0280\/6179\/4375\/products\/cabc5edc-bbeb-4827-8c88-b55005951932.jpg?v=1641562450","url":"https:\/\/greenzech.com\/products\/wireless-headset-microphone-for-teaching-meeting","provider":"GreenZech","version":"1.0","type":"link"}