Bluetooth Digitizer Smart Pen by Smarson, For iOS and Android Devices, The Smartest Digital Pen VERY EASY TO SAVE DIGITALLY: Capture your writing and turn handwritten notes into digitally stored documents, where you're able to save and share it very fast. ADVANCED BLUETOOTH TECHNOLOGY: The receiver, clipped at the top of a standard sheet of paper, detects smart pen writing and transmits it in real-time via Bluetooth to connected devices. MAXIMUM COMPATIBILITY: App syncs and stores everything you write with supported Bluetooth enabled smartphones and tablets, including iOS and Android devices. LED INDICATOR: Light on base of smart pen signals user of battery status. Quick flashing red light shows charging mode, constant light shows that the battery is fully charged, and slow flashing light alerts user of low battery. INCLUDED ACCESSORIES: Comes with receiver, charging cable with dual port (micro and mini USB), 2 sets of standard metal refill, and a clip. When fully charged, receiver battery lasts 10 hours and pen lasts 60 hours.