Complete Kit for Versatile Use: This package includes six portable USB battery packs, each featuring a clear case that holds 3 AA batteries (not included). Ideal for connecting multiple USB devices like neon signs, LED lights, and more, ensuring convenience and mobility. User-Friendly Design: Designed for ease and portability, these battery packs operate with a standard 3 AA battery configuration. Perfect for powering neon signs, cars, tents, or any setting that requires mobile lighting without the hassle of wired connections. Effortless Operation with Built-in Switch: Each battery pack is equipped with an on/off switch, allowing you to easily control your connected devices. This feature eliminates the need to unplug or remove batteries, simplifying the use of neon signs or LED devices. Broad Compatibility with 5V USB Devices: Engineered to work seamlessly with a wide range of 5V USB-powered devices. Compatible with neon signs, LED strip lights, fairy lights, and other USB gadgets that require a portable power source. Easy Battery Replacement for Continuous Use: The designed battery packs allow for quick and easy battery replacements. Simply open the cover, swap out the three AA batteries, and continue to enjoy the convenience of wireless operation. Color: As Shown Material: plastic Package Contents: 6*Battery box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.