There are 4 buttons in the product. No. 1 button is sent by default. If you need to change it, please contact customer service for message or remarks. Thank you!
Product size: 140 * 65 * 30MM
Window size: 46.5 * 46.5mm
Product accessories: upper cover * 1, bottom shell * 1, silica gel key * 1, screw * 6, shrapnel, display window and top lens
There are two No.5 battery compartments in the shell