{"product_id":"hjc-smart-21b-communication-system","title":"HJC Smart 21B Communication System","description":"\u003csection data-tab=\"description\" data-order=\"odd\" class=\"description\"\u003e\n\u003cdiv class=\"prose\"\u003e\n\u003cp\u003eThe SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets. Based on the BT 5.1 low power system, the 21B offers Bluetooth 4-way intercom functionality, with over 22 hours of talk time.\u003cbr\u003eThe enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.\u003c\/p\u003e\n\u003ch2\u003eSpecifications of the 21B\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLong-lasting Power (up to 22 hours)\u003c\/li\u003e\n\u003cli\u003eBattery Unit \u0026amp; PCB Unit MIC SET\u003c\/li\u003e\n\u003cli\u003eBoom-Type: Applicable for Modular \u0026amp; JET helmet\u003c\/li\u003e\n\u003cli\u003eWire Type: Applicable for Full Face helmets\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.1\u003c\/li\u003e\n\u003cli\u003eAdvanced noise control\u003c\/li\u003e\n\u003cli\u003eVoice prompt\u003c\/li\u003e\n\u003cli\u003eUniversal intercom \/ HD Speaker\u003c\/li\u003e\n\u003cli\u003eIntercom(1600m)\u003c\/li\u003e\n\u003cli\u003eAudio Multi Tasking\u003c\/li\u003e\n\u003cli\u003e4-way intercom\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"HJC","offers":[{"title":"Default Title","offer_id":55081522823459,"sku":"4402-0958","price":233.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/3587\/7923\/files\/image_2026-05-13_122548653.png?v=1778700352","url":"https:\/\/motohut.com\/products\/hjc-smart-21b-communication-system","provider":"Motohut ","version":"1.0","type":"link"}