CallTou Window Intercom with Outer Speaker Loud Speaker Connect Wireless Mic Intercommunication Talk Through Glass for Hotel School Counter Store Station 1 Pack walkie talkie 🛡️This 130db loud noise maker

🛡️This 130db loud noise maker is a fortress for your home

Paging System

Portable Necklace Lanyard

if you need SMS or phone call notification

CallTou Window Intercom with Outer Speaker Loud Speaker Connect Wireless Mic Intercommunication Talk Through Glass for Hotel School Counter Store Station 1 Pack walkie talkie 🛡️This 130db loud noise makerProduct Description DUAL WAY VOICE INTERCOM COMMUNICATION: Two way voice intercom counter interphone adopts auto dual way intercommunication technology,automatic indentification of processing speech signals during a call dose not require any action INDEPENDENT VOLUME ADJUSTMENT: Window intercom system has the ability to adjust the volume on the both sides; And knob design can be more convenient to operate; Less static noise or hollow sounding HIGH