Before your order, please note that: 1.please kindly note the program just has Chinese version. Do not support English. and the product just has Chinese version. 2.It do not support App and just can support WeChat applet. 1. Hipee Posture Trainer and Corrector Smart Posture Correction Device Real-time Scientific Back Posture Monitoring Strapless Back Health Benefits and Confidence Builder for Adult/Kids 2.Features: Deviation 5-20 intelligent reminder Innovative design, light and thin wear Long battery capacity and USB Type-C rechargeable Built-in high-precision sensor chip and intelligent posture recognition algorithm to accurately capture posture and correct posture Soft food grade silicone and ergonomic design, easy to put on and take off, no feeling of wearing Sedentary reminder 3.Binding WeChat applet to unlock more functions: One day's wearing condition record and intelligent analysis Personalized customization Professional posture correction course Human-computer interactive games 4.Specifications: HIPEE Rated input 5V 1A Power supply Internal power supply Communication method BT4.1 or above Working hours 90 hours Charging time