Thunder Tiger RC 5130-F11 Madcat OBL Ready to Run Boat, Yellow ABS blow-molded hull with quick-remove hatch cover Water cooled OBL 29/19-15M and ESC BLC-40M, Mini servo and receiver installed, Radio COUGAR GP2 2.4GHz included Factory assembled and Ready-To-Run Requires: 6 "AA" batteries for transmitter, 3S 11.1V 1800- 2200mAh 25C+ battery, Lipo Compatible Battery Charger Specifications: Length: 27.2 in (690 mm), Beam: 7.3 in (185 mm), Height: 6.1 in (155 mm), Weight: 2.7 lb (1210 g)