About this product

1、【Wireless Intercom System】: This wireless intercom phone operates at 433MHz and offers stable digital transmission over long distances. It doesn\u0027t require any wiring, network, or additional fees, making it a plug-and-play device with built-in signal. 2、【Supports Multiple Devices】: The main unit and sub-units can support up to 99 devices for intercommunication. Each unit displays its own ID number, ensuring secure digital encryption and preventing code interference. 3、【Adjustable Call Features】: The device offers incoming call display, adjustable call volume, and one-touch calling. It also features a one-touch broadcast function and 38 different ringtones with adjustable volume. 4、【Long-Range \u0026amp; High-Quality Sound】: The wireless transmission distance reaches up to 1 kilometer, with clear sound quality for two-way conversations. The device supports simultaneous talking without the need to alternate pressing buttons, ensuring stable performance and high-fidelity sound. 5、【Versatile Application】: This wireless intercom phone is suitable for a wide range of settings, including offices, factories, hotels, KTVs, hospitals, and other public venues. The device can penetrate up to 8 walls within a room, making it a reliable communication tool for any environment.

Specification

Power Supply Method: Direct power supply, USB interface 5V2A DC

Style: Host, Extension (optional)

Working Temperature: -10 ° C to 55 ° C

Transmission Distance: Approximately 1000 meters of open space, 5-40 meters of partition walls, floors 1-8

Working Power: 0.5W

Working Frequency: 410MHz~460MHz