Changeable Speed: This Rc Boat Has Two Throttle Mode - Mode 1 And 2, You Can Switch The Throttle Mode Freely With This Large-Propeller Remote Controller So You Can Control The Speed Of The Boat, The Max Speed Upto 30Km/H. Lcd Screen Display: With Lcd Screen On The Transmitter, You Can Read The Voltage Volume Of This Rc Boat Clearly And It Has Low Battery Alarm Function To Remind You Make A Return Decision. 2.4Ghz With 4-Channels: The 2.4Ghz Frequency Of The Remote Allows For Multiple Boats To Be Raced Simultaneously.4-Channels Allows The Rc Boat Go Forward And Backward, Turn Left And Right, And The Sensitive Remote Controller Can Make The Boat Do Extreme Sharp Turns And Auto Flips, It Also Can Do 180 Degree Turnover Action When It Capsizes, Which Will Bring You Great Fun. Waterproof And Durable: This Rc Boat Is Waterproof And Has Motor Protective Device, Only When Putting The Boat On The Water, And The Propeller Brass Contact With The Water, It Will Be Energized, Which Makes The Playing More Safety. The Rc Boat Is Also Equipped With Anti Water Design And Air Cooling Device-Automatic Cooling System. Battery Information And Note: The Rc Boat Need 45 Minutes To Full Charge And The Play Time Is 6-8 Minutes Equipped With 7.4V 600Mah Lithium Battery, The Transmitter Needs 4X1.5V Aa Batteries (Not Included). Note: Please Let The Top Cover Open When Finished Playing And Take Out The Battery And Keep The Boat Hull Dry For Long Time Playing