Wireless Intercom System Two-Way Communication Device, 1 Host 3 Extension Intercom Kit C868147

How to Use: 1. First, press the extension ''CODE'' key for 5 seconds to form a network. The receiving light is always on and the screen displays jumping. 2. Press the host button for 5 seconds, and the calling light and receiving light will flash alternately after 2 sounds. 3. Press the host "Call" button again, the receiving light is always on, the screen flashes, release the button, and enter the extension setting ID state4. Press the ID number that the extension needs to network wants (ID number is 0 to 999), and then press the host ''CALL'' button to confirm. 5. The host and the extension to be networked beep three at the same time, that means the host and the extension to be networked have been networked successfully 6. If you need to add more than one extension to network, you should follow the following steps. Extension set D time to 180, and then return to standby state. Specification: Item Type: Wireless Intercom Material: ABS Application: Suitable for hotels, factories, teahouses, KTV, hospitals, entertainment and public places Operating Voltage: 5V 2A Plug Voltage: 100 - 240V Package List: 1 x Host 3 x Extension 4 x Plug 4 x Usb Cable 4 x Manual Note: Extension D number cannot be the same as the host and extension of networking.