Product Type Smartpad Pen Information Technology Electro-Magnetic Resonance (EMR) Reading height 8 mm (0.3 in) from product surface Smartpad Information Connection Bluetooth 4.0 Supported Paper Size -Half Letter, 8 1/2 x 5.4 in A5, 140 Ξ§ 216 mm. (Bamboo Folio Small & Bamboo Slate Small) Wireless Battery Operation Time 8 hours (typical) Battery Charging Time 2.5 hours (typical) Internal Storage (Offline mode) 100 pages