The lowest price of Window intercom / talkback system in Bangladesh is Tk-8,500/= only. Buy from Dhaka at low price in Bdstall. There is currently 1 seller.
Professional interphone system is known as window intercom or talk back system. The package comes with an electret condenser cardioid microphone, desktop intercom, window intercom option-1, window intercom option-2, and a 2.4-meter cable for window intercom. The microphone of the window intercom's output is 1 REC via a 3.5 mm stereo jack.