4Pcs 3 Slots AA USB Battery Holder With On-Off Switch And Sliding Cover, Black

What is this?This portable USB battery pack is designed for mobile lighting, converting batteries into a convenient power source for LED lights, making it suitable for parties, markets, weddings, and other mobile lighting scenarios.What will I get?3 Slots AA Battery HolderColor: BlackApplicable Battery Models: AAApplicable Single battery voltage: 1.5VBox Size: 76 x 51 x 19mm / 2.99 x 2.01 x 0.75inch (L*W*H)In the package of: 4 Pcs x battery boxAre there any advantages of the product?Made of a hard material, the battery case has high strength and good toughness, making it resistant to cracking. Each battery pack comes with a protective cover and an ON/OFF switch, allowing you to easily control the lights without unplugging them. The sliding protective cover not only effectively protects the batteries and internal circuitry but also makes battery replacement and maintenance simple and quick. An internal stainless steel spring securely holds the batteries and facilitates easy replacement. The lightweight and compact battery holder allows for flexible placement of neon lights without the need for a wall socket.How to use it?Insert batteries into the holder. Use the USB cable with your LED device. Use the on/off switch to control the lights. When batteries run out, replace them with new ones.What should I notice?Batteries are not included. Ensure correct battery installation.