Digitize your Notes - The Neo Smartpen Dimo has an internal camera that captures your handwritten texts and converts them to digital documents when the pen syncs with Neo Studio app. • Longevity - The battery lasts a month when the pen is used for an hour a day. • Write and Sync – The digital pen has 2MB (saves up to 3 sheets of A4 size) of internal storage so you can transfer your stored handwriting data at a later time. • Compatibility - Dimo is compatible with Neo Studio app and you can export your handwritten notes to various formats and share them on social media and email. However dimo does not sync with Google Calendar, ical and outlook. • Replaceable Ink Cartridge - The Neo Smartpen uses Standard D1-Type pen tip, and you can always replace it with D1 refills. Please check NeoLAB's page for the full list of compatible ink refills.