NEEWER Dolly 3 Wheels Wireless Video Camera Tripod, Speed Motorised Electric Rail Car with Remote Control, Compatible DSLR Camcorder GoPro iPhone Smartphone (Black)

Remote control: the wireless remote control can change speed and direction and take a break, effective distance 6 m; 3 speeds adjustable (2.4 cm/s, 2.6 cm/s, 2.8 cm/s) Adjustable wheel: 180° adjustable wheel angle, you can achieve creative circular route / straight-line movement as well as tilt pick-up through the bowl head. The adjustment of the middle screw can change the opposite position of two wheel frames. If you want to loosen or tighten the wheel bolt, the six angle wrench can bring an advantage Conversion screw: 1/4 inch to 3/8 inch conversion screw is suitable for most camera/smartphone holders. BUILT-IN BATTERY The built-in 1800mAh rechargeable lithium-ion battery provides up to 6 hours working time. USB charging port and charging cable are available, light display 4 light indicators show the charge status (red charging, green charging), battery power (low power consumption when 3 indicators flash) and speed (indicators always mean speed position).