PDA. For example, most manufacturers offer such things as spare batteries, extra styluses, and upgraded leather cases.

举例来说，大多数厂商提供备用电池等物品，额外探针、皮革升格案。

This is, by and large, a useful translation, but it's worth considering that some idioms don't work as well with smaller screens, styluses, and four-way rocker switches.

但是有些情形下，可能有些习惯用法并不好用，特别是在较小的屏幕、使用写字笔和四项按钮的情况下。