Is it safe to use the headset at high volume levels for long periods?
No, you should not use headphones or headsets at high volumes for an extended period of time, as doing so can cause hearing loss. Always listen at moderate levels, and you can visit plantronics.com/healthandsafety for more information on headsets and hearing. (Page 3)
From the official Plantronics Savi Wo2 manual, page 3
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