1. Battey-free pen is free from charging, saving you from charging trouble. It can work at any time. 2. With a 4096 levels pressure sensitivity simulating had pressure, H430P ensures smooth and fine drawing lines, presenting richer impressive graphics. 3. With a weight as light 135g as a phone, the thinnest part is only 6.3mm. 4. Small panel, great freedom. The compact size makes it easy for carrying and greatly reduces the range of wrist movement 5. Small size, great functions: 4 shortcuts on the top of the panel can be user-defined to such function as Pen,Cancel, Brush Options, etc. Specifications: Model: H430P Interface Type: Micro USB Dimension: 186.6 x 139.2 x 6.3mm Resolution Ratio: 5080lpi Pressure Levels: 4096 Press Keys: 4 Customized Press Keys Working Area: 121.9 x 76.2mm ( 4.8 x 3in ) Sensing Height: 10mm Report Rate: 233PPS OS Support: Windows 7 or later for Mac OS 10.11 or later Weight: 135g Package Weight: 420g Package Size: 21.9 cm * 17.0 cm * 4.3 cm Package Included: 1* H430P Graphics Tablets 1* Battery-free Pen 1* Micro USB Cable 1* Pen Nib Clip 1* Quick Start Guide