Ht-401b
1 backlight function
2 easy. Medium and hard level to be selected;
3 within 100. 0000 puzzles;
4 count time function;
5 auto power off function;
6 adjust contrast function;
Please contact us about details;
Ht-400
1 6*6 grid;
2 easy and hard game mode;
3 randomly generate the puzzles;
4 1*cr2032 batteries operated;
5 promotion gifts as used;
Ht--610
1 6*6 grid;
2 easy and hard game mode;
3 randomly generate the puzzles;
4 2*ag 13 batteries operated
Ht-401b
1 backlight function
2 easy. Medium and hard level to be selected;
3 within 100. 0000 PU