How to use?

Press the on/off button on  the top right to turn on the unit. When using for the first time, you may need to hold the button for a couple of seconds for it to start. Then follow the instructions (printed in English) on the packaging to begin games.

Troubleshoot if unit does not power on: if the unit does not turn on, try replacing the battery. To open the battery door, turn the round battery cover clockwise. If the unit still doesn't start, you may press the black reset switch to reset the unit.

Product description & measurements

- Includes thousands of randomly generated puzzles
- The world's hottest game in the palm of your hand
- 2 levels to choose - easy and hard
- 2 x 3 x 6 playing grid
- Powered by 1 x CR2032 battery included
- One free (extra) CR2032 battery included

Length: 2.64
Height: 0.59
Width: 1.85
Weight: 1.41 oz

Length: 6.7 cm
Height: 1.5 cm
Width: 4.7 cm
Weight: 40 g

Reviews:

This mini keychain is quite light to carry around. Personally I found that those 9 by 9 sudoku games are usually too involving. Sometimes I end up with more headache than fun. This 6 by 6 board is easy to play even for beginners. And it's great for killing that 10 minutes when you are on a bus or in a washroom.

Since the unit and the buttons are quite small, the stylus-like stick you see in the photos above are for those who have large fingers.