Easy to Control: 2.4Ghz frequency with anti-interference ability, remote control distance of 60-80 meters. The remote controller control forward, backward, turn left, turn right, LED light, sound, raise or down the hopper. Realistic Sound and Light: Simulate dump truck, coming with sound reminder and light to build a real construction environment. Hopper Raise and down: Press the button on the remote controller all the time, you can raise or down the hopper, bring more fun for kids. Long-lasting Battery Life: The powerful 7.4V 1200mAh rechargeable battery provides long time playing, charging time is 3-4 hours, and can provide 30 minutes of use time. “Car battery::7.4V 1200mAh Li Battery Material: Metal + ABS Playing time: About 30 minutes Charging time: About 180 mimutes Play distance: over 80 meters Funcition & feature: 1) 1 to 14 High proportion simulation model, self – unloading action, sound and lighting, to bring you a more real experience 2) Analog hydraulic telescopic arm design, free lifting structure of 45 bucket. 3) 2.4G remote control system independent control, rear 4 wheels drive, strong power, control distance can be reach 80M. “