This document introduces the system requirements of a wearable digital audio player, including the compatible versions of operating systems.
This manual describes the Key13 wearable digital audio player, including the supported operating systems (Windows 98SE/2000/ME/XP and Mac OS 9.2.2/10.2.6) and the basic button functions such as volume control, power, and navigation. It also lists the available memory configurations, USB interface version, and supported audio formats.
Technical details such as the display size, physical dimensions, and audio codec ranges are provided, along with copyright information and manufacturing details. This manual is written in Chinese.