1. REAL TIME RECORDING AND SYNCING: The smart pen allows you to write smoothly at any 360° angle and accurately captures everything you create, storing it digitally on your device. It can record and share in real time. You can view your notes on your smartphone without needing to carry a physical notebook. 2. OCR RECOGNITION TECHNOLOGY: The Bluetooth pen recognizes what you write in the digital notebook through OCR recognition technology and converts it into editable text; meanwhile the digital notebook can synchronize your creations, drawings, and other complex patterns in the notebook to the app. 3. PLAYBACK AND SHARE: The smart pen supports saving and playing in video format. The video playback function allows you to review the creation and learning process. In addition, you can send and share your notes or creations in PDF or image format via email and other social media platforms. 4. OFFLINE STORAGE: No need to worry if your phone fails to connect to the app! When you reopen the app, you can download offline data and save it to your phone. Using the offline storage feature helps you avoid missing important information and helps you view important details later. 5. BLUETOOTH 5.0 LINK: Digital with pens use the Bluetooth 5.0 system. The first time it links, it binds the smart pen to your phone app. Next time, simply open the pen cover and it automatically connect to your phone via Bluetooth. Compatible for Android, fit for phones and tablets, but not computers. Color: Blue Material: Paper Package Contents: 1 x Smart Pen 1 Set x Loose Leaf Paper 1 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.