Wireless Intercom 1 Host 3 Extension Home Communication System for Hotel Department 100?240VUK Plug

Feature: 1. Suitable for hotels, factories, teahouses, KTV, hospitals, entertainment and public places. 2. The host extension can support up to 100 intercommunication without serial code. 3. The working frequency uses 433MHz. You can change the ringtone of the incoming call, and the ringing sound can be adjusted. 4. With caller ID function. Equipped with one?key calling host, one?key broadcasting function. 5. Communication distance, obstacle?free distance is about approx. 1000m/1093.6yd. Specification: Item Type: Wireless Intercom Material: ABS Application: Suitable for hotels, factories, teahouses, KTV, hospitals, entertainment and public places. Package List: 1 x Host3 x Extension4 x Plug4 x Usb Cable4 x Manual Note: Extension D number cannot be the same as the host and extension of networking.