The AT&T 2-Way Intercom Unit is a plug and play baby monitor with 3 channels, perfect for monitoring indoor areas in your home. The unit is in a sleek dove gray color and operates on a wall outlet with 110/117V voltage. It is expandable and features wireless connectivity for easy installation. Made by AT&T, this audio intercom unit is a reliable and convenient addition to your home security system. Free shipping makes it even more appealing for customers looking to enhance their home monitoring setup.