1. Do not support English. and the product only has the Chinese version. 2. It does not support the app and can simply support the WeChat applet. 1. Description: 2. Features: Innovative design, light and thin wear Long battery capacity and USB Type-C battery Soft food grade silicone and ergonomic shape, easy to put on and take off, no wearing feeling Sitting reminder mode 3. Binding the WeChat applet to unlock more features: Personalized customization Professional Posture Correction Course Interactive Human-Computer Games 4. Specifications: Brand HIPEE Rated 5V 1A Input Power supply Internal power supply Communication method BT 4.1 or later Working hours 90 hours Charging time 1,5 hours Temperature -10-55 Relative humidity 80% RH Software version supports IOS6.5.8, Android 6.5.7 or later; Color for adults: black, red Child: pink, blue Type Models for children/models for adults Size 120x132mm/137x167mm Neck circumference 26-33 cm/34-43 cm Weight 50g/62g 5. 1. Support IOS6.5.8 version, Android version 6.5.7 and later version of WeChat client (certainly To ensure the integrity of the usage function, please Letter client is updated to the most officially released new version) 2. This product is recommended for children over 3 years old, teenagers and adults. 3. The first time you use it, it is recommended to fully charge the equipment first. 4. This device must come into direct contact with the skin as it can cause inaccurate data when in contact with the fabric 5. 6. 5. List of packages: 1 x USB cable 1 x manual (Chinese)