Product Power Supply: Battery and USB 3 Key: R/L SR ASA On/off: On the base Dimension: 138MMx35MM Colors: black, white Material: ABS Package list: 1x Rotating display standand1x USB cable 1. Electric and automatic rotating platformThe maximum load is 3kg. Can be used to display jewelry, cakes,cups, toy models, art exhibits. Placed in shops, Studio, schools library, exhibition halls, living rooms and other venues. 2. Controltable speed,adjustable direction and angle R/L rotates clockwise or counterclockwise. SR 2 gear speed regulation is 1-2 revolutions per minute. ASA can adjust the rotation angle 45-90-180-360and turn round. Its depends on what you want. 3. ON/Off switch Any key to turn on and off on rotating display stand. Turn on in 1 second and turn off in 3 seconds. 4. Power supplyThe rotating display stand works with USB power supply or Power storage Rechargeable Battery or by External Battery 3 AAA (not included). 5.Mirror SurfaceThe mirror-like surface makes the displaying products more prominent and eye-catching, produces a dazzling and attractive effect. Suitable for displaying jewelry, watch, cosmetic, toy model, mobile phone and digital camera. A great display stand for your collectibles or craftwork.