{"version":"1.0","provider_name":"Grandstream India","provider_url":"https:\/\/www.grandstreamindia.co.in\/blog","author_name":"grandstream","author_url":"https:\/\/www.grandstreamindia.co.in\/blog\/author\/grandstream\/","title":"Grandstream Introduces Outdoor Horn Speaker to GSC Series - Grandstream India","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"ezScX1SSwV\"><a href=\"https:\/\/www.grandstreamindia.co.in\/blog\/grandstream-introduces-outdoor-horn-speaker\/\">Grandstream Introduces Outdoor Horn Speaker to GSC Series<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.grandstreamindia.co.in\/blog\/grandstream-introduces-outdoor-horn-speaker\/embed\/#?secret=ezScX1SSwV\" width=\"600\" height=\"338\" title=\"&#8220;Grandstream Introduces Outdoor Horn Speaker to GSC Series&#8221; &#8212; Grandstream India\" data-secret=\"ezScX1SSwV\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.grandstreamindia.co.in\/blog\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.grandstreamindia.co.in\/blog\/wp-content\/uploads\/2026\/02\/social-image-GSC3518HS-no-text.png","thumbnail_width":1200,"thumbnail_height":630,"description":"The new GSC3518HS is a SIP\/multicast talk-back horn speaker delivering crystal-clear HD audio through a powerful 50W high-fidelity speaker. With IP66-rated water and dust protection, it\u2019s built for reliable outdoor announcements across campuses, public spaces, offices, schools, hospitals, parks, warehouses, and more enhancing security and communication with confidence. The GSC3518HS features a powerful 50W speaker [&hellip;]"}