Description
The Grandstream GSC3518HS is a SIP/multicast talk-back horn speaker that provides crystal clear HD audio, a high-fidelity 50-Watt speaker, and IP66-rated water and dust protection. Ideal for outdoor campuses, public spaces, large offices, school playgrounds, hospitals, parks, warehouses, and more, the GSC3518HS provides a powerful outdoor announcement solution that expands security and communication.
This high-powered SIP speaker includes 3 microphones, AI-based background noise reduction, and intelligent text-to-speech to ensure every word is heard clearly in talk-back scenarios.
The GSC3518HS supports PoE++ input and PoE+ output, catering to device cascading scenarios. Thanks to its’ modern industrial design and extensive features, the GSC3518HS is an ideal SIP talk-back horn speaker for any setting, allowing users to easily build a powerful intercom, security, and public-address announcement solution.
Grandstream GSC3518HS Key Features
- High-powered 50W speaker with maximum volume of 126 dBA, ideal for coverage of expansive outdoor areas
- 3 microphones, AI-based background noise reduction, and intelligent text-to-speech to ensure every word is heard clearly in talk-back scenarios
- Full-band and wide-band audio codec support, including Opus & G.722
- Includes differential LINE IN and LINE OUT connections
- Supports Airplay, ONVIF, RTSP/HTTP streaming, local audio files, and mobile app playback
- SIP paging, multicast paging, call waiting with priority override, and more
- One 10/100Mbps network port with PoE/PoE+/PoE++ input, and one 10/100Mbps network port with PoE/ PoE+ output
- IP66-rated waterproof and dustproof; includes a durable stainless-steel bracket suitable for harsh outdoor environments






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