Perfect Compatibility: Compatible with for HP Spectre x360, ENVY X360, Pavilion X360 laptops and supports Windows Ink and for Microsoft Pen Protocol MPP2.0 for more natural writing and drawing. 4096 Levels of Pressure Sensitivity The highly sensitive Tilt Pen supports MPP with 4096 levels of pressure sensitivity for smooth writing, giving a natural feel like writing on paper. Presentation Function: Press and hold the B button and then press the A button to switch between handwriting mode and presentation mode. The stylus must be connected to the computer via Bluetooth in order to use this function. Bluetooth Connectivity: The pen supports Bluetooth and is easily activated with a single button that also acts as an end eraser, compatible with Windows Ink, driving content, creativity and drawing forward. Fast Charging: The Tilt Pen supports fast charging and only takes about an hour to fully charge, with a long battery life that allows your creativity to extend indefinitely. Colour:Gray Material:plastic Package Contents: 1 x Bluetooth Stylus Pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.