... Portable speaker, Multimedia speaker, portable speaker, Mobilephone MP3 speaker,computer speaker,laptop speaker Specifications:MP3 speaker: 1.card reading function ... ,can read USB/SD/MMC card 2.USB plug,can play MP3 audio file MP3 ... 1000mA/3.7V*many interfacesAccessories: 1pc audio cables,1pc USB cable Lithium battery 1000mA/3.7V Product specification:1.Consumption ...