{"product_id":"grandstream-sip-multicast-intercom-talk-back-horn-speaker-gsc3518hs","title":"Grandstream SIP\/Multicast Intercom Talk-Back Horn Speaker | GSC3518HS","description":"The Grandstream GSC3518HS is a powerful SIP-enabled horn speaker designed for clear, high-volume paging and intercom communication in large indoor and outdoor environments. Featuring a 50W speaker with output up to 126 dBA, it ensures announcements remain clear even in noisy or open spaces such as warehouses, campuses, and public areas.\nEquipped with three built-in microphones and advanced noise reduction, the GSC3518HS supports reliable two-way talk-back communication. It offers SIP and multicast paging, priority-based announcements, and text-to-speech functionality for automated messaging.\nDual network ports with PoE support simplify installation and allow for flexible deployment, while additional line-in and line-out connections enable integration with external audio systems. The device also supports streaming protocols for added versatility.\nBuilt with a durable IP66-rated enclosure, the GSC3518HS is designed to withstand harsh weather conditions, making it ideal for demanding environments requiring dependable, high-quality audio communication.","brand":"Grandstream","offers":[{"title":"Default Title","offer_id":49637228970213,"sku":"GS-GSC3518HS","price":6790.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/0010\/6725\/files\/19195.jpg?v=1781827407","url":"https:\/\/guardsondutyshop.co.za\/products\/grandstream-sip-multicast-intercom-talk-back-horn-speaker-gsc3518hs","provider":"Guards On Duty Shop \u0026 Security Guards ","version":"1.0","type":"link"}