2.4inch color screen. 2pcs IR LED light for night vision. Simple installation, suitable for all kinds of doors. Doorbell button trigger, one click view and wake up. Support internal storage of 91 photos, cyclic coverage, no need to add TF Card. One key to delete all pictures. Built in 600mah lithium battery, non removable, can be charged directly with USB. Fit door thickness:35~120mm, fit door hole diameter: 14~28mm.
