Livescribe
Livescribe Echo 2 Smartpen, Black Digital Pen, Bluetooth, Wireless – Compatible with iOS, Android, Mac, Windows
Neo Smartpen
Neo Smartpen M1+ for Android, iPhone and Laptop | Digitize Handwriting | Bluetooth Real Time Sync, Handwriting to Text Transcription, Export to e-Mail and Document (Black)
Ophayapen
Ophayapen Smart Pen+Notebook+Tablet, SmartPen Real-time Sync for Digitizing, Storing, and Sharing Paper Notes, Ideal for Note Taking, Drawing, Use with Ophaya Pro+ App,Compatible with Android and iOS