Bin enabled by the quality of the Bluetooth Box excited. The battery life is surprisingly long and sounds very well balanced. Had the same time as the Top Rated loudspeaker unit of CSL bought computers that although valent in the hand (metal, hard) - but having too little treble in the sound spectrum. The Mobi-2 is indeed plastic, but very well made. Both boxes are good - but Mobi-2 is just that little bit better.