Description: up/down, Low voltage cut-off protection/Over-charge protection/Over current protection/Motor blocked protection, anti-interference protection, break-resistant, infrared control/sensor automatic induction Miniature size and light weight. Portable and easy to carry. Super wide infrared control, easy to fly. Below the sensor automatic induction obstacles,keep flying not fall to the ground.Abandon the traditional craft characteristics of silent,make flying more interesting. Inductive suspension and collision protection, light weight, easy to fly with simple operation especially designed for beginner. The fuselage of aircraft is streamlined to cut down wind resistance and makes the aircraft to fly in the sky easily. Specifications: Name: RC helicopter Material: ABS, nylon, hardware, electronic components Battery for transmitter: 3 x AA battery (not included) Battery for quadcopter: 3.7V 90mAh Lithium battery (built-in) Charging time: About 50 minutes Working time: About 7 minutes Control distance: About 15m Item dimension: About 17.5 x 4.3x 11.5cm/6.9*1.69*4.53in Package Included: 1 x helicopter 1 x remote controller 1 x cable Notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the picture displayed on the website. 2. Please allow for slight manual measurement bias in the data. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.