Wireless Intercom Phone Extension with Adjustable Volume Supports Multiple Devices Long Range Wireless Intercom System

Enhance your communication efficiency with this advanced Wireless Intercom System, designed for seamless, long-distance, and reliable two-way communication without the need for wiring or network connections. Operating at 433MHz, this digital intercom offers stable signal transmission up to 1 kilometer in open space, making it ideal for various environments such as offices, factories, hotels, hospitals, and more. Key Features: · Wireless Intercom System at 433MHz: Ensures stable digital transmission with built-in signal technology, eliminating the need for wiring, networks, or additional fees—true plug and play convenience. · Supports Multiple Devices: Connect up to 99 main and sub units for secure, encrypted intercommunication. Each unit displays a unique ID number to prevent code interference, ensuring private and reliable connections. · Adjustable Call Features: Enjoy incoming call display, one-touch calling, and broadcast functions with 38 selectable ringtones and volume adjustable at multiple levels for both standby and call modes. · Long Transmission Range: Up to 1,000 meters of open-space communication and effective penetration through up to 8 walls or multiple floors, coupled with clear sound quality and simultaneous two-way conversations without button toggling. · Versatile Application: Perfectly suited for professional and public venues including offices, manufacturing plants, hotels, KTVs, hospitals, and more, where reliable, wireless communication is essential. Specifications: · Working Frequency: 410MHz–460MHz · Transmission Distance: Up to 1000 meters (open space); 5–40 meters with partition walls; supports 1–8 floors penetration · Working Power: 0.5W · Working Current: 400mA; Backup Current: 70mA · Transmission Power: <30dBm · Receiving Sensitivity: > -100dBm · Call Volume: 3-level adjustable · Ringtones: 38 choices with adjustable volume · Buttons: 10 numeric keys, 1 call key, 1 settings key · Host interconnection: Supports up to 100 interconnected units (2–100 hosts and extensions) · Power Supply: Direct power via 5V 2A DC USB interface · Operating Temperature: -10°C to 55°C · Product Size: 170 x 110 x 54 mm (6.7 x 4.3 x 2.1 inches) Package Includes: · Wireless Intercom System Units powered by USB 5V 2A DC Designed for easy installation and high security, this wireless intercom system offers reliable long-range communication with crystal-clear voice quality and extensive compatibility with multiple units. Its robust design and versatile features make it an essential communication tool for diverse indoor environments demanding stable, encrypted, and interference-free wireless interaction.