About this item Material: acrylic crystal pendant, led copper wire lamp, all iron electroplating Light color: You can select RGB model or warm light/4 color（ (flashing mode)） Power supply mode: USB plug or battery power supply (3 * AA battery is required, not included) If you select RGB model: The flash mode can be controlled through the mobile phone APP to adjust the speed and brightness Timer: set the required time period to turn on the required mode and turn off the required mode. The music interface has two modes: music and microphone. In music mode, the color will change with your phone music; In microphone mode, the color changes depending on the external sound. Package includes: 1 * crystal tree lamp+USB cable+English manual 18 * Crystal masonry (self installation required)