All as in description. The device is a bit big, but the straps are a bit small (I wear it outside the clothes). Its work well. It vibrates whenever the upper back angle overpass the programmed threshold. But a fundamental disadvantage of all this type of devices is that whenever you are doing sth that requires you to lean forward it vibrates. All in all is a good product to help you to improve your posture in long term.

All as in description. The device is a bit big, but the straps are a bit small (I wear it outside the clothes). Its work well. It vibrates whenever the upper back angle overpass the programmed threshold. But a fundamental disadvantage of all this type of devices is that whenever you are doing sth that requires you to lean forward it vibrates. All in all is a good product to help you to improve your posture in long term.

All as in description. The device is a bit big, but the straps are a bit small (I wear it outside the clothes). Its work well. It vibrates whenever the upper back angle overpass the programmed threshold. But a fundamental disadvantage of all this type of devices is that whenever you are doing sth that requires you to lean forward it vibrates. All in all is a good product to help you to improve your posture in long term.

wow thats really interesting i like it so much ,its so benifict its work alone and alarme me if i forget my back

wow thats really interesting i like it so much ,its so benifict its work alone and alarme me if i forget my back

wow thats really interesting i like it so much ,its so benifict its work alone and alarme me if i forget my back