Colour:Black .Material:plastic+metal .Package Contents: .1 x .1 x Remote Control .Only the above package content, other products are not included. .Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +- 1-3cm.

Unlock via mobile app: without holes, single-sided installation without holes indoors, no traces outdoorsAutomatic lock when closing the door, magnetic lock, the door tongue senses the magnetic stone and automatically locks4xAA batteries for stable battery life, low battery voice system reminds to replace the battery(Note: Batteries not included)Widely used: Indoor non-metal door locks for homes, offices, etc., door thickness does not exceed 60mmSmart Electron Lock