SYMA HX603 RADIO CONTROLLED HELICOPTER Comes with quality NI -MH 7.2V 650 mAH Battery and a Spower 370 Motor to give the helicoper plenty of power to create good preformance in flight Great new modern 2007 design with simple to use on/0ff switch The new tail fin design makes it very stable when flying in the air. Also has rotar speed control and a flight stablizing system