If you notice you’re slouching all the time, the Upright Go 2 Back Posture Trainer offers you a way to improve that. This wearable gadget goes between your shoulder blades on your back to help you stand upright. Measuring just 1.89 inches long, the Upright Go 2 improves on the Upright Go original’s battery life. Instead of lasting just 10 hours on a single charge, this posture improving device now works for up to 30 hours. Just turn this wearable..