Feature: 1. Crossed designs, conform to ergonomic designs, fit the body curve when wearing. 2. Real-time angle detection through smart chip, the corrector automatically senses and vibrates when the posture is bad, to achieve the purpose of correcting posture. 3. Using healthy materials and passing strict skin allergy test, you can use it with confidence. 4. Designed with screen display memory function, you can check the number of times of bad sitting postures per day. 5. Elastic shoulder strap, it won't curb your shoulder, comfortable to wear. Specification: Condition: 100% Brand New Item Type: Intelligent Induction Posture Corrector Charging Voltage: DC5V Charging Current: 500mA Built-In Battery Specifications: 400mA / 3.7V Lithium Battery Instructions for Using the Charging Function: 1. If the icon flashes during operation, it indicates that the battery is low and needs to be charged before it can be used. 2. Connect the DC5.0V output from the adapter or computer USB interface to the charging input port through the USB charging cable, the icon flashes, and the icon lights up when it is full. 3. It is forbidden to use during charging. Corrector Display and Key Vibration Description: When running, the battery is prompted; when charging, the charging status is indicated. Work operation instructions, when a hump is sensed, vibrate to remind. When a bad posture is displayed, the value is automatically counted. Short press button Turn on, the vibration prompts once. Press and hold for 1 second to turn off. Press and hold for 5 seconds, except the automatic count value, the count returns to 0. Common Problems: 1. If the posture corrector sensor is not sensitive, you can adjust the angle of the strap properly, keep it close to your back. 2. If the posture corrector sensor is too sensitive, when the user stands normally, adjust the angle of the posture corrector so that it is perpendicular to the ground.. Package List: 1 x Intelligent Induction Posture Corrector1 x USB Cable Note: Due to individual differences, if you feel uncomfortable while wearing, please stop wearing and consult a doctor.