digitsea infrared digital door peephole viewer magnifier 3.5 inches TFT LCD screen Night vision wide angle / Video Record / Photo shooting 1.Quality warranty: 1 year. 2. 4pcs IR LEDs, clear night vision LEDs will turn on automatically under poor light. 3.Automatically taking and saving photos in micro SD, when visitor press doorbell button. 4.OV industrial high definition color sensor, 120 degree lens, very clear image 5. Please be advised,batteries are not included.Power Source: 4pcs AA Alkaline Batteries (good for approx.1500 peeps)