InnovaGoods makes it easy for you and helps you prioritize your personal care without excuses. You are offered the best news in beauty, relaxation and well-being Smart and rechargeable posture vest with vibration Viback InnovaGoods is a good example Discover a wide range of quality products that stand for functionality, efficiency and innovative design. A smart posture vest with a modern, Unisex and size design that vibrates to alert you when your posture deviates by 25° from the original correct posture. It provides gradual training by starting with one hour a day which you then increase a little at a time. The LCD screen with counter is very useful for maintaining good posture control and for noting progress. The monitor records the times that your back deviates from the established 25º limit, although it can be restarted at any time. This ergonomic posture vest has adjustable elastic straps to make it fully customizable and is very comfortable and discreet to wear, as it can be worn under clothing. It's also rechargeable, so you don't need batteries or bothersome cables and can use it anywhere at any time. It is very easy to use. You simply charge it for about an hour and a half and follow the instructions in the included manual. It comes with a USB to micro USB cable. Material: ABSNylonPolycarbonatesColor: GreyBlackType: Posture vestModern design: ErgonomicGender: UnisexSize: One sizeAdjustable: Elastic, flexible and adaptableVibrating: vibration alertLCD display: Counter with readerButton: On/OffEasy to use: Simple and convenientLightweight and practical: Easy to transport and storeRechargeable: USB loadIncludes: USB cable to micro USBcharacteristics: LED charging lightCharging time approx: 1.5 hoursBattery: Li-ion 3.7 V / 400 mAhDC In: 5 V / 500 mAF Packaging and manual in multiple languages: English, French, Spanish, German, Italian, Portuguese, Dutch, Polish, Hungarian, Romanian, Danish, Swedish, Finnish, Lithuanian, Norwegian, Slovenian, Greek, Czech, Bulgarian, Croatian, Slovak, Estonian, Russian and Latvian