Press it by hand for about 1 second, the colorful lights are turned on: yellow light, red light, green light, dark blue light, light blue light, pink light; after pink light, it enters colorful discoloration, long press for two seconds to turn off the light 3D stereo surround sound 10 meters Bluetooth distance to receive strong signal Function: Comfortable and soft night light Wireless charging when you put it down Colorful discoloration switch at will Bluetooth music stereo surround Power bank built-in battery Long-lasting battery life, charging and plugging Lipin Model: TB-99S Battery capacity: 2000mAh Product material: ABS Lead power::1 0W Color rendering index:>80 Packing size: 133*120*196MM Charging time: about 5h