This plug & play wireless intercom is very simple to use, clear two way communication and has an impressive 300meters within building and 1km wireless open field transmission. Handsets are powered by plugging into a standard 13-amp wall socket with the communication being done using a wireless signal (not using controller, gateway or pabx box), which makes the system ideal for communicating within and between buildings. Very simple to use, each unit have a 2 digit id number then press one large button to call, lift the handset to answer and a clear two way conversation. With inbuilt battery, users can communicate even when there is power outage for up to 5days.
You will talk free from room to room(no charges,no sim card)
the price mentioned is for one pair(2pcs)
best for office use
hotel, guest house, lodge, restaurant
using 2.4g ism world public frequency band: 2402-2483mhz
wireless, full-duplex and digital for o