... operation system and card slot, suitable for iPod, MP3, mobile phone, laptop.. Name: Mobile Mini Foldable Speaker with Card SlotType: ID-12N.W ... customer’s need, which is suitable for MP3, MP4, PC and iPod. The speaker is equipped with 3.5mm multifunction frequency ... hours. It is a mobile mini foldable speaker, with remote operation system and card slot, suitable for iPod, MP3, mobile phone, laptop, ...