处方药、眼镜、隐形眼镜液、助听器电池等特殊用品。
Special needs items such as prescription medications, eye glasses, contact lens solution, and hearing aid batteries.
笔记本电脑、手机、录影机和助听器都能使用燃料电池供电。
Laptop computers, cellular phones, video recorders, and hearing AIDS could be powered by portable fuel cells.
耳背式助听器使用纽扣式电池，合格的产品使用寿命应在200小时左右，按每日使用12小时计算，有效使用期限约为两周。
BTE button battery life, the qualified products should be in 200 hours or so, is calculated by using 12 hours a day, period of validity for about two weeks.
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