Not worth the money, a towel between the shoulder blades would be more effective.

This product has helped remind me to sit up straight, but overall I'm dissapointed. Bending over (even with spine relatively straight) counts as "slouching" so if you are doing anything other than sitting at a desk you can't do much until the "training" session was over. The device regularly disconnects from my phone without notifying me, so it's not recording my posture and I have no idea that it's off. You have to charge the device between each use, and my device takes about 3 hours.

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