CallToU Window Speaker Intercom System Glass Window,Intercom System for Business call button so there is no need

so there is no need to worry about not receiving SOS alert

Internal and external volume can be adjusted separately

Suitable for residents

Pagers allows caregivers the freedom to tend to other duties while feeling confident they will be alerted when your loved one needs assistance anytime anywhere

Step 3:Separate the sensor/ Press the button on the call button again to confirm whether the receiver can sound

CallToU Window Speaker Intercom System Glass Window,Intercom System for Business call button so there is no needProduct Description The window dual way intercom speaker system is suitable for any place where window conversation is difficult or noisy. It adopts advanced language processing chip plus unique design and strict quality management. It has the characteristics of clear sound quality, controllable volume, anti interference and anti howling. Ideal for the bank, hospital, securities, bus station etc. where guard glass again theft is installed. It is easy