unless i'm just unlucky the batteries that come with the KKCOBVR halo headstrap appear to be crap with regards to longevity, I've just ordered my 4th at £30 because the first 3 have died, some within a month going up to around a year for the longest lasting one. i really like the headstrap but spending this much on batteries, well i'm just not happy about. if this 4th battery dies then i will dump the headstrap altogether to buy a Bobo one.



