Features: - High-quality and durable movement, with a load capacity of 8kg. -30-40 decibels, quiet display, low noise, will not interfere with video recording. -Multifunctional switch, R/L: direction switch, SR: speed adjustment, ASA: angle adjustment. -Simple operation, power on - single click any button to turn on, power off - long press any button for 3 seconds to turn off. -The rotating display stand works with USB power adapter or power 18650 battery (not included). Specification: Colour: black Material: ABS Size: 20*4cm Speed regulation: 8/15/30s/r Angle adjustment: 90°/180°/360° Power supply mode: USB plug-in/18650 battery (battery not included) .