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。
2
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.