YIBOO UJ 4703 Mini Metal Gyroscope 3.5D, 3.5 CHANNEL RC HELICOPTER. COLOR MAY VARY! Ready-to-fly Mini RC Helicopter (black, red, or blue) Infared Radio Controller (runs on 6 AA batteries) USB Charging Cable (connects helicopter to computer for charging. You can also charge helicopter by pluging it in to the remote.) Spare Tail Propeller and main propellers (just in case your creative flying ambitions get the best of you...) Overview: Ideal for indoor flight Flexible, collapsing propeller blades for extra durability 3.5 Channel Metal Body Frame Gyroscope for Stabilization Red & Blue Flashing Strobe Lights Charging time: 30-40 min Flight time: 5+ min Control Distance: 10-20m For ages 8+ Controls: Throttle (left joystick: powers main propellers for ascending and decending) Forward and Backward (right joystick: powers tail propeller for forward and backward flight) Left and Right (right joystick: pivots left and right for turning) Trim Dial: (for adjusting left and right trim for straight flight... works very nicely!) On/Off switch for main headlight Weight & Dimensions: Size: Length 220mm Width: 36mm Height: 95mm Flight Characteristics: When it comes down to it, the most important characteristic of a mini rc helicopter is how well it flies. There are options for a toy helicopter on the market that advertise a good price, but when it comes time to enjoy the thing, you find out that it suffers from some of the common problems of a poorly engineered micro helicopter -- lack of power, instability, limited controls, and inability to trim out to straight flight. Stability: RC helicopters have long been one of the most difficult types of RC aircraft to fly. That's why this micro RC helicopter is a "jaw dropper" within the first five seconds of flight. Unlike many of its contenders, its gyroscope stabilization system works flawlessly. All you have to do is slowly ease the throttle up until you have reached a nice clean hover. Trim Adjustment: There is nothing more frustrating than a mini RC helicopter that uncontrollably spins in circles no matter what