Features: This product is made of thick material, strong and easy to clean, and can be used for a long time. Prevent and control mobile phone addiction, reasonably control snacks, control children's long-term play of toys and games, and assist children in controlling addiction and developing good habits. Easy operation: Just set the unlock time, the lock time is between 1 minute and 999 hours (up to about 41 days), and when the set lock time is reached, the lock box will automatically open. The time lock can safely prevent distracting calls from disturbing the time of family and friends, and can also be given to them as a gift. Colour:White Material:ABS+Acrylic Power Supply: 2 x AAA batteries(Not included batteries) Package Contents: 1 * Electronic time lock 1 * USB charging cable 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.