Due to express transportation safety reasons, AAAA batteries are not included, and need to be purchased and installed for use
Enjoy natural handwriting input with your ASUS Transformer Book Chi. Compatible Model T90Chi/T100Chi/T300ChiPalm rejection technology prevents accidental touch input256-level pen pressure for precise, accurate writingA single AAAA battery provides up to 9.6 weeks of regular useTake notes in an instant, you don't even need to pair it via BluetoothA long-lasting 1mm tip for added durability.Get creative with many popular apps, including Lync, Outlook, Skype, and many more.Two programmable side buttons which can be configured for erase and right mouse click functions.