... for Chinese Chess, Chess, Crossword game, A-math,I-GO game and other games, a slide switch on ... election;3.12 different preset timer modes: you can preset default time rules, or edit your own ... match, special warning tone in I-GO game;5.Lock key design: It can avoid player misoperation in match ... Button for 3 seconds, you can start game again, no need to preset again.7.Shell Materials: ABS8.OEM, ODM, ...