It is a device that can check visitors by voice.

1) Input voltage: DC12V 200mA
2) Installation type: wall type, desk type
3) Wiring: 2 wires
4) Mastery distance: 300m
5) Environment of use: 0 ~ to 40℃

· Mutual call / PTT function
· Volume adjustable
· Available in hospitals/security offices/obstacles, etc.
· Applicable from 1 channel to 10 channels depending on the site