... bag,MP3 speaker,solar mobile phone charger,solar chargerSolar speaker bag through solar panel to absorbs solar energy, then charge different mobile phones and ... system of speakerOutput power of speaker: 2wWith outside amplifierSpeaker with solar cellAmplifier size: 90mmAccessory:V3+2.5Impedance:8ΩUser ... NDS, GBA and so on.The speaker can compatible with MP3,MP4,Music mobilephone,computer.PDA and so on ...