Keep in mind that this price is good today only, as it is part of the Gold Box Deal of the Day. And it will expire at midnight PST tonight.   With the eufy Wireless Video Doorbell see visitors in sharp detail as they approach your door against any backlighting. The private low-power wireless connection between the Doorbell and Homebase reduces standby power consumption by 58%. It has Military-Grade AES 256-Bit data encryption ensures your footage is kept private on transmission and storage. HDR imaging ensures high clarity for backlit or low-light scenarios, providing a clear image day and night. eufy Security Video Doorbell uses a 4:3 aspect ratio to offer a bigger viewable area from top to bottom. Receive facial snapshot notifications so that you can quickly check who is at the door. The main difference between this and the wireless doorbell from Eufy is that this does need to use your existing doorbell wiring for power. So it does not have a battery included. This is what is able to make this doorbell a bit cheaper.