The Upright Go2 is a posture trainer

It is a slim, elegant design that easily attaches to your upper back for a discreet and comfortable fit. Equipped with multi-sensor technolgy, UPRIGHT GO 2 detects your body’s movements, upper body position, and other postural nuances. It emits a gentle vibration whenever you slouch, training your body to sit or stand with correct upright posture. The companion app provides progress stats, personal training programs, tracking mode to record posture data. Battery life: Approximately 30 hours