... Small and used to furnish audio frequency for PCs, music mobile phones, MP3/MP4s, CD palm players, and other portable fixtures Listing ... Power3WFrenquency Response80Hz-18KHzSource:TFcardPC,MP3,MP4,MD,CD, DVD player, Mobile phone,etc card, PC, MP3, MP4, MD, CD, DVD player ... , Mobile phone, etcPacking P/S 54*54**54mmB/S 120*113* ...