... mobile phone, iPad, iPhone, Touch, MP3, MP4, notebook PC and desktop PC, PSP etc., unique stereo vocal cavity processing makes the ... :4Ω3WInput Range:10-700mVDistortion:less than 10% Signal to Noise Ratio;more than 85dbWeight (g):90gVolume (mm):65x65x55Charging ... Time:<1.5 hoursPlay time:1.5 hoursStandby Current: 500uA P-MAX Mini Speaker low-voltage and low-power