Rechargeable: This disco light watch comes with a USB cable, providing four hours of battery life after just half an hour of charging. 5 Modes: Press the button to switch between 5 modes, including voice control, gradual change, jump, pulse change, and flash. Features red, green, and blue lights. Bracelet or Suction Cup: Wear the small disco light as a bracelet or attach it with the suction cup to smooth glass or flat surfaces in your car, bedroom, etc. Portable: This night light is small and lightweight, easily carried in a bag or purse, especially when traveling and camping. Voice Control: The lighting changes with the beat. This disco light is perfect for parties, karaoke rooms, concerts, and dance performances. Wear it on your wrist and enjoy a visual light show! Key Features: Strap: 30 cm (elastic) Mode Change Control Voice Control Step-by-Step Change Jump Change Pulse Change Burst Flash Turn on/off by pressing the model button for 3 seconds. Memory Function: When turned on, it enters the light mode that was last used.