Features: Functions: 2.4GHz 4CH design, low voltage alarm, rudder capacity conversion, and hovering midpoint setting. For novices: The aileron-free and aerodynamic design can provide strong power and guarantee body stability. Together with the function of one-key taking off and landing, the product is easier to control and more suitable for novices. Altitude function: With the function of air pressure height setting, the flight is super stable. The aircraft can sense the surrounding environment and ensure stable hovering during the outdoor flight. Strong power: The application of an 8520 coreless motor and a 3.7V 400mAh 20C battery can provide strong power for the aircraft. Easy to replace: The tail motor is connected with a detachable plug, which makes it more convenient for you to replace it. Any problems, feel free to contact us. Honor to serve you Specifications: RC helicopter Model: K127 Material: plastic Color: multi-color Motor: main motor: 8520 coreless motor; tail motor: 0615 coreless motor Battery: 3.7V 400mAh Work time: about 16mins Charging time: 35-40mins Size: 28*8.3*6cm Remote control Frequency: 2.4GHz RC distance: 80-100m Battery: 6*1.5V AA batteries(not included) Package information: Size: 33.6*25.4*9.1CM Weight: 608g Package list: 1*helicopter 1*remote control 1*instruction 2*propellers 1*USB charging cable 3*lithium batteries