Grandstream GSC3518HS SIP/multicast talk-back horn speaker, up to 126 dBA with a 50W speaker, IP66-rated weatherproofing, and advanced AI noise reduc

Grandstream GSC3518HS is a rugged SIP/multicast talk-back horn speaker designed for large indoor and outdoor venues, delivering up to 126 dBA with a 50W speaker, IP66-rated weatherproofing, and advanced AI noise reduction for crystal-clear communication. It’s ideal for schools, hospitals, warehouses, parks, and public spaces where powerful announcements and two-way communication are needed.

Key Features
- High-Power Audio
- 50W high-fidelity speaker
- Loudness up to 126 dBA for wide coverage
- Crystal-clear HD audio output

- Durability & Protection
- IP66-rated dust and water resistance
- Stainless steel housing for extreme weather conditions
- Suitable for outdoor environments like playgrounds, parks, and warehouses

- Smart Communication
- SIP and multicast support for integration with VoIP systems
- Talk-back functionality with 3 built-in microphones
- AI-based noise reduction for clear communication even in noisy environments
- Intelligent text-to-speech capability

- Power & Connectivity
- PoE++ input and PoE+ output for device cascading
- Easy integration into existing network infrastructure

- Design
- Modern industrial look
- Sturdy mounting bracket for reliable installation