Product introduction: [product model]: F101B [product range]: 3.5 metal plate miniature remote control helicopter (built-in gyroscope) [airplane size]: Fuselage approximately 21*18*11 [flight function]: Rise, drop, advance, backlash, counterclockwise, right-turn, hovering (province electricity pattern, two fast patterns) [flight altitude]: 10 meters [remote control is away from]: 15 meters [flight time]: 6-8 minutes [duration of charging]: 20-30 minutes [uses battery]: 6 1.5VAA batteries [aircraft battery]: 3.7V 150mAh lithium battery [product detailed list]: Helicopter. Remote control. Tail wing 1. Screwdriver 1 .USB1 strip. Instruction booklet