Radio Shack. 4027 radio controlled shark charging platform 3 ballasts pair of forks user's guide Thank you for purchasing your Radio Controverted Shark from in two Frequencies (MHz and J S9MHz), so that you and your fronds can race them! Actual productivity vary. fom depiction. i (ase teat ths user's good. before: installing SSG up; oF Using your Few product. radiosonde com © LA Sending your shark on a swimming frenzy Set your shark foo in some water and point your transmitter toward it.