inputs.text: changed mind - gave negative review couple weeks ago unit mysteriously stopped working yes fully charged yes rtm truly not working well mysteriously started working day works 100 expected odd oscillator sound coming unit called tech support told noise expected due refresh rate lcd screen means not use bluetooth cheaper headphones seehem pick noise given bought swimming point moot purchase intended purpose water sports gets 5 stars unit problehems within 90 days freestyle seehems responsive take care