CallToU Window Speaker Intercom System,Dual Way Anti-Interference Intercommunication Best Seller Use the mini screwdriver to

Use the mini screwdriver to unscrew the 3 screws

easy to read even at a distance

keeping you safe and prepared during your outdoor escapades

Plug the power adapter into a 100V-240V socket

Large power

CallToU Window Speaker Intercom System,Dual Way Anti-Interference Intercommunication Best Seller Use the mini screwdriver toAbout this item Dual way intercommunication: Two way voice window intercom counter interphone adopts auto dual way intercommunication technology,automatic indentification of processing speech signals during a call dose not require any action. Host & Extension: Both the main unit and the extension have 78. 74IN wire speaker and high sensitive microphone, and the volume can be adjusted separately. Sound clear: Inside & Outside Volume Adjustable,CallToU