Sumix Disc 3 - Compare to Sumix 9 - New & Improved Model Features 3 Super Bright SMT LED lights - Brighter than the Sumix 9 with 9 LED lights On/off push button on top of unit Uses 3 AAA batteries included and replaceable to last 8-10 hours Unit is remote control capable remote sold separately Dimensions: 2.5" D x 1.25" H