Wireless Audio Intercom #RL-0518B - Wireless duplex communication, - 8 ringtones for option - Indic
Wireless door phone, RL-0518, audio intercom, battery powered, 433 MHz, 8 ringtones, up to 3 indoor
RL-0518L ●433MHz wireless audio intercom. ●8 ringtones for option, 4 ringtone volume levels adjustab