I play drums, percussion, and occasionally acoustic guitar in a band. I personally test all music-related products and confidently recommend them. Due to the weak yen, import prices have increased. Prices may change suddenly. An essential item for dark live houses. I can't go on stage without this! It has two power sources (batteries and 100V AC USB power), so even if the batteries run out in an emergency, you'll be okay! At home, I use the USB cable as a reading light before bed, and at live shows, I use batteries for a music stand light. The other night, there was a power outage, but thanks to this, I didn't panic. It's also reassuring to have it on hand as part of your disaster preparedness kit. I have other music-related items for sale! #mondoBandRelatedProducts Arm Length: Approximately 19.5 cm from the base to the tip of the light. It can be bent to any angle. It has a clip that opens up to 3 cm. Power: USB power cable included (special cable, not available at electronics stores) 3 AAA batteries (sold separately) Both can be used. Not rechargeable. Brightness can be adjusted in two stages on each side, for a total of four stages. Please note that this product will be shipped in simple packaging. Dual-arm, adjustable, flexible LED, bright