The light arms are made of high-quality metal alloy material, offering high flexibility and hardness. They can be positioned in various angles and shapes, providing a wide range of multi-angle lighting options. Multiple Power Supply Modes: These reading lights offer dual power options, including AAA batteries or USB cable connection. When connected to a DC power source via USB, the battery power automatically shuts off without needing to remove the batteries. Upon disconnecting from the power source, the device switches back to battery power with a simple press of the button. Batteries (three AAA) are not included. Meets Multiple Needs: The LED lights on each arm deliver brightness equivalent to three standard LEDs. Independent switches on both arms allow for multiple lighting combinations: one light on a single arm, both lights on one arm, or all lights on both arms. The design provides flicker-free, shadow-free, and glare-free illumination, ideal for reading and other tasks. Adjustable Clips: Equipped with adjustable clips that securely hold objects of varying thicknesses. A rotating component at the clip tail allows independent movement, expanding the clamping range and ensuring a firm grip. Wide Range of Uses: These rechargeable book lights are suitable for music stands, reading, piano playing, orchestral performances, workbenches, computers, knitting, sewing, and crafting. Compact and versatile, they are convenient for travel or nighttime reading. Color: Black Material: ABS + Metal Package Contents: 2 x Music Stand Lamps Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight variations between the color shown in images and the actual product. Measurement tolerances may apply.