The Hobbyzone R/C Duet S 2 RTF Radio Controlled Airplane is an updated and upgraded version of one of the best-selling and lowest-cost hobby-quality trainer models available for learning to fly radio-controlled (RC) airplanes! It's ultra-micro sized so it can be flown in large gardens, small parks, football fields, and other suitable spaces where larger models can't typically be flown successfully by first-time pilots. And now it's equipped with exclusive SAFE (Sensor Assisted Flight Envelope) technology that helps prevent overcontrol, loss of orientation, and crashes so nearly everyone can learn to fly successfully!Features: An updated and upgraded version of one of the best-selling and lowest cost hobby-quality trainer models available for learning to fly radio controlled (RC) airplanes 100% complete and ready to fly right out of the box - there's nothing extra to buy, provide, or assemble Now equipped with exclusive SAFE technology that helps prevent crashes and makes it even easier to learn how to fly In The Box: HobbyZone Duet S 2 525mm Electric Motors (installed) Receiver, ESC and Servo Control Unit (installed) Transmitter with 2.4GHz technology (included) AA Alkaline Batteries (for the transmitter, included) E-flite 150mAh 1S 3.7V LiPo Battery (included) E-flite 1S LiPo Battery USB Charger (included) Duet S 2 525mm Product Manual This Ready-To-Fly (RTF) model includes everything needed to fly in one box and is a perfect choice if you're a new RC pilot! From the 2.4GHz controller/transmitter and the AA batteries for it, to the 1S 150mAh rechargeable LiPo (Lithium Polymer) battery and a convenient USB charger that can be used with a variety of USB power sources, there's nothing extra you need to buy or provide. Best of all, it arrives 100% factory-assembled and ready to fly right out of the box - no assembly required! No other hobby-quality RC model can offer this experience at such an incredible price. Manufacturer: HobbyzoneModel: HBZ05300 Duet S 2 RTF