根据上述资料的注册证号格式，可以推断出产品类别不同于另外三种助听器的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29660' and id < 2410016 and id<>'2410016' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29660' and id > 2410016 and id<>'2410016' order by id asc limit 5