Upgrade your home alert system with the Wasserstein Doorbell Chime for Google Nest Doorbell (wired, 2nd Gen) (Not included). Designed exclusively for Nest Doorbell (wired, 2nd Gen), this chime delivers instant indoor alerts when someone presses your doorbell-no phone needed. With 7 chime sounds, 4 Led colors, and 6 volume levels, you can tailor alerts to match your style and space. The 650 ft range ensures reliable performance throughout your home. Best of all, it's Made for Google Nest, guaranteeing seamless compatibility and setup. Just connect the transmitter to your Nest Doorbell (wired, 2nd Gen) and 18-24VAC, 18VA maximum power adapter/transformer, plug in the receiver, set up the Google Home App, and never miss a visitor again. (Not compatible with Nest Doorbell Battery. AC power adapter/transformer Not included)