.* Made of high quality material for durable use.* 9 light-emitting diodes (LEDs) illuminate up to four sides of the note.* Durable clip attaches to the music stand or sits freestanding * It is available to clip the lamp almost anywhere and any angle with the clip.* Strong and flexible gooseneck arm that moves as needed.* This music stand light can be powered by 3x AA batteries or with an AC adapter/USB cable that can be connected to the mains, a portable charger or a laptop. Specifications:Number of LEDs: 9Product Material: Plastic + MetalCharging Mode: USBThe Gooseneck Type: 29cmHandlebar Light Length: 21cmThree Power Options: 3 AA Batteries (Not Included); AC adapter (not included); USB DevicePackage List:1x Music Lamp1x USB Cable