510-Thread Charger，USB Smart Charger with Over-Charge Protection, Compatible Standard 510 Threaded Devices – 2-Pack⚡ UNIVERSAL 510 THREAD：Compatible with 510 thread HIGH capacity batteries.
⚡ INDICATOR：Red indicator means your device is charing, and green indicator means your device is fully charge
⚡ Convenience:Universal Equipment Port,USB charge, portable power, computer/laptop usb port and so on.
⚡ Good Quality：Wire material selected PVC material, soft and durable，Standard USB interface, neat workmanship, excellent contact with pure copper, finely crafted high quality.
⚡ After-sales service:One year warranty，We offer a one-year warranty service, and you can contact us with any questions about the use of the products.