This product ensures that you can always get the most suitable lamp color according to different uses. Quick touch to adjust the brightness.The item is small and portable, which is perfect to use , hotel, on , airplane, etc., you can take it everywhere. Features -Material: ABS, Electronic Components, Iron -Size: 53.50X5.50X5.50cm/21.03X2.16X2.16in -Light Source: 28 LED Lamp Beads -Battery: 3pcs AA Batteries(Not included) -180°adjustable lamp cap, 28 LED lamp beads, each of left and right sides for 90°. -Large coverage, more free for both concentration or diffusion. -Three adjustable brightness levels, first for 10%, second for 50%, third for 100%. -A large clamps at the bottom, with stable clamping and the maximum clamping capability is up to 4.5cm. -The clamps are provided with rubber pads to prevent clamp from damage or slip. Package list: 1 x Music Stand Lamp 1 x USB Cable