brain trainer game LK-G892 1. Systematic training your brain for basic mental; 2. 30-day score recorded; 3. A train brainer covering your whole mental with a five minutes' game; 4. Data saved for battery replacement; 5. Big key facilitating operation; 6. Calculator 7. Automatic turning off Unit size:10.8x8.6x1.8cmCTN dimensiions:59x32.5x41 CM Boxing Quantity:48/24PCS N.W./G.W.:6.8/8.2KG (reference)