The Upgraded Headband Magnifier Glasses Can Meet Your Needs! With efficient rechargeable batteries and convenient USB charging interface, no longer uses conventional batteries to store electricity, supporting LED soft light working for 8 hours continuously, strong light working for 4 hours. Greatly extend LED working time, reduce resource waste, more environmental protection. What's more, it can greatly reduce the weight of the reading magnifying glass and thus reduce the pressure on the bridge of the nose. Keeping the bridge of your nose at ease. The improved lens slot can lock the lens tightly to prevent the lens from falling off due head movement. It is also easier to install and disassemble the lens