inputs.text: volume control mystery solved devices multiple channel controls media not call audio - [ [ videoid314fe64efed2d39429e9e9fe03fa15a3 ] ] love construction love tfsd card slot figured going sound settings got actual volume initially sound absolutely anemic yet realized tablet adjusting call audio not media audio tablets volume control buttons worked manually maxed media audio blammo let musicmanually adjusting media volumejust make clear happening adjusting volume via speaker device call audio channel adjusted default not mediabt channel media channel really needed adjust full range volume speaker words volume issues likely need manually adjust mediabluetooth volume maximum directly device settings speaker maximum order \\calibrate\\ tworange response okay say appreciate not twin speakers one get tired single speaker output also ability play ancient cds burned sd card directly speaker making really easy no connection needed playing 1988 capitol cds beatles past mastersthe 5 star winwhat really makes 5 star option however sheer battery life paid bit anker speaker earlier year specifically 20 hour battery life yet anker small single speaker no tf slot bit less get super extended battery bigger output tf card slot thats pure win received complimentary review product aim hopefully elucidating features drawbacks may help ultimately decide fits needs budget best