inputs.text: quality sound environment - oh goodat 2 high 3 diameter unit almost weighs almost pound sound good looking dozens bluetooth portable speakers may want take serious look ecandy bluetooth speakerit charges 37 v builtin aluminum battery 12 hours enclosed usb cable easily pairs quickly device speaker last four hours sound clarity one best punchy not boomy bass midranges delightfully crisp trebles distinct sometimes hear instruments never heard volume loud enough used outdoorsyou also option hooking directly device mobile phone etc enclosed 35mm cable speaker actually perfect office space phone call comes speaker quickly goes dormant answer callnot perfect model however control buttons bottom fact unit rests three control buttons meaning turn unit upside work thehem properly arrangehement odd well one button pairing pause play another fast forward next song volume third return previous song volume think easier way combine functions functions visible top bottom unit silver silver black black making reading bit difficulthaving said price speaker absolutely fantastic sound quality say best portable bluetooth speaker found date unit supplied honest review