Acer Active Stylus AES 2.0/USI 2.0/MPP2.5 (ASA510) - universal standalone pen * 4096 pressure levels* tilt support 0-60°* long battery life up to 9 hours* charging via USB-C cable* size 144 mm x 9 mm, weight 13 g* for Acer TravelMate/Aspire/Spin/Chromebook touchscreen laptops with support for AES, USI and MPP protocols