Product description:
INS-11041 Digital PD Rouller OPTI+ <br /><br />Dimensions: 9 x 7 x 3 in / 23 x 17 x 7 cm <br />Weight: 5.10 oz / 144 g<br /><br />Features:<br />- Power off automactically by lying it down after operation; while power on automatically when picking it up.<br /><br />Specifications:<br /><br />1 Battery: 23A 12 battery