2K ResolutionSee who's at your door with crystal clear 2K 3MP crisp high resolution video, capturing every detail even when you zoom in. Easily identify faces with no worries of grainy images, and enjoy a 160° diagonal field of view showing you everything you need to see outside your door.Connectivity protocol: 2.4GHz Wi-Fi Band.Power source type:Corded Electric.Controller type:Kasa/Tapo App, Alexa/Google Instant Notifications & Modular ChimeGet instant push notifications when the doorbell button is pressed or adjust the volume for select times. The modular Chime design allows you to conveniently place your chime where you want, choose from several different tones, and adjust the volume directly on the device. Never miss another delivery or wake your family with an unexpected guest. 2-Way AudioKasa Smart home video doorbell gives you the ability to answer your door even when you're not home. Watch live from anywhere, anytime on your phone or favorite supported devic