Product information: Power type: 18650 battery Scope of Application: Household Model: M50 Display: APP display Connection: wi-fi Camera: 2 million pixels Power supply: 18650 battery Image resolution: 1080P Scope of application: household Type: Color visual intercom Product specifications: Visual doorbell/m (send Ding dong, battery, charging cable), visual doorbell/black (send Ding dong, battery, charging cable)