... -in battery6.3W,DC5.0V7.aluminium alloyVibration speaker is a magic audio frequency fixture. It is quite different from the traditional one which ... 3.7V ,600mAhOutput Power3WFrenquency Response80Hz-18KHzSource:TFcardPC,MP3,MP4,MD,CD, DVD player, Mobile phone,etc card, PC, MP3, MP4, MD ... , CD, DVD player, Mobile phone, etc Packing Product weight: 0.33KG ...