... solar panel. 3,CE,ROHS report. 4,speaker mp3 speaker backpack solar Solar panelpower:2Wpacking Outer Carton(CM) ... panelsCertificateCE&ROHS Speaker bag,Solar Speaker bag,sport bag,MP3 speaker,solar mobile phone charger,solar chargerSolar speaker ... /130mAOutput voltage: 5.5V Output current: 450MaImpedance: 2x2ΩStereo system of speakerOutput power of speaker: 2wWith outside amplifierSpeaker with ...