ASUS Z Stylus features a slim and elegant design that feels natural in your hand. It employs a combination of unique firmware and tuning for exceptional performance and compatibility with ASUS tablets. Z Stylus utilizes special circuitry and a 1.2mm tip to ensure accurate and precise input when working with popular apps like E-Mail, Supernote, and other apps for hover function.Its two buttons can be programmed for hover or erase functions; with Palm Rejection technology preventing accidental inputs. Z Stylus doesn't require a Bluetooth connection, and its single AAAA battery gives it up to 150 hours of use or 225 days of standby time. When not in use, the clip-on design secures it in your pocket or bag. Z Stylus comes with an additional durable tip, effectively doubling the lifespan of your stylus.