YM518X Electric operation， just press the button to turn it. Compact design， convenient for storage. Can also be a lottery picking machine. Can used for lucky games as lucky number picking machne. Powered by 2*AA batteries. (not included) Video Demo Package Details Weight: 171.20 g Size: 11.7*11*10.8 cm Package Includes 1 × Electric Lucky Number Picking Machine Lottery Bingo Games