JOYARCH RC ERA C184 MD500 RC Helicopter for Adult, 2.4G 4CH 6-Axis No Aileron Remote Control Helicopter, Ultra-Stable Flight RC Aircraft With Optical Sensor & Upgraded Transmitter - 3 Battery

【Stable Aileronless Design】Aileronless aerodynamic design with precision engineered propellers provides strong power and self-stabilising flight capability, and equipped with 6-axis gyroscope for smooth control. 【Easy and Precise Manoeuvring】Equipped with pneumatic altitude holding and optical flow positioning technology to ensure stable hovering, and a simple 4-channel system for smooth and easy use. 【Intelligent Modular Battery】Built-in intelligent power management 7.4V 350mAh modular lithium battery, with clear power indicator, supports quick installation and effective protection function, prolonging battery life. 【Multiple Flight Modes】Support ascending, descending, forward and backward flight, sideways flight, spinning, route flight, aerobatics, one-key take-off and landing, low voltage alarm and runaway protection function. 【Complete Ready-to-Fly Kit】Includes helicopter, 2.4G remote controller, USB charger, spare propeller, Li-Polymer battery, tools and instruction manual, so you can easily set up and enjoy your flight., Manufacturer: JOYARCH