·Our Bluetooth glasses feature a spring-loaded hinge design that automatically adjusts to different head shapes. Meanwhile, our translation app's translation function is free to use without a subscription, and other functions are also free to use simply by pairing the Bluetooth glasses.

·What is the polarized effect of this smart glasses?

·Our smart glasses have a polarized effect, and under strong light, the lens will change from transparent to gray. But the polarization effect cannot compare to sunglasses.

·Does this bluetooth glasses support fast charging?

·No, these smart glasses do not support fast charging. For safety reasons, please use the charging battery that comes with your smart glasses to charge them.

·Are the smart glasses turned on and off controlled by the two temples independently?

·Yes. The power on and off of the smart glasses are controlled independently. If you want to connect both sides to the mobile phone, you need to control the function keys on both sides to turn on.

·Do translation apps not require a subscription for their translation function?

·Yes, the translation function of our translation app does not require a subscription, and other app functions can also be used for free after pairing with Bluetooth glasses.