Whether you’re tired of dealing with back, neck, and shoulder pain or just want to improve your posture, the Strack Smart Posture Corrector for Men & Women has you covered. Strack is a compact, lightweight, and easy-to-use device that uses vibrations to help you maintain a proper posture throughout the day. It helps you maintain an upright posture when you’re sitting at your desk whether at home or the office while staying out of sight so you can comfortably wear it throughout the day. Strack is rechargeable and provides up to 2 – 3 days of use on a single charge so you don’t have to worry about changing batteries. Real-time vibrations: Help you maintain proper posture throughout the day Powerful magnet: Easy attachment on the back My Strack App: For complete posture tracking & training Invisible & lightweight: At merely 0.49 oz, you can hide this device under your clothes Long battery life: Use this corrector for 3-5 days How to Use: Wear Strack on your upper back using magnet or adhesive Calibrate Strack using the My Strack mobile app by pressing the button twice Get a gentle vibration alert immediately on bad posture Specs: Color: milky white Materials: high-grade polycarbonate Dimensions: 0.4"H x 1.8"L x 1.2"W Battery life: 3-g days Real-time vibrations Powerful magnet App: My Strack Compatible with Android & iOS Invisible & lightweight Easy to use & manage Manufacturer's 1-year warranty Compatibility: iOS 9.0 or later Android 6.0 or later Includes: 1x Strack Smart Posture Corrector for Men & Women 1x Travel Carry Case 1x USB Cable 1x User Manual 1x Adhesive Set 2x Magnet Clasp Set