Japanese cellphone producer Tone Mobile has introduce its new smartphone that only works during daytime.

According to Kyodo News, the new phone, Tone m17, aims to reduce the amount of time that school children spend on their phones. The phone aims to help parents to communicate with their children while they are out, but reduce the negative effects of having a smartphone.

The phone automatically locks between 10 p.m. and 6 a.m. for children under the age of 12. Parents can also restrict the use of messaging apps and the entire phone in certain places such as schools. The parents can change all the restrictions whenever they like.

The phone is reported to hit the shelves on Aug. 1 and will retail for $312.