“Why does ad say up to 20 hours of play but specs say upto 4.5 hours of play”

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• Hi Kieka, these headphones have a maximum playback and communication time of 20 hours. The 4.5 hours (approx.) is its charging time. You may refer to this link for more information: https://docs.sony.com/release//Manual_4698106111.pdf Regards, -Mark

  Answered by SonyListens 8 years ago

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• I use these at a desk for 9+ hours a day without a charge. I typically charge nightly but have gone up to 2 days of use before needing to.

  Answered by Mapman 7 years ago

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• Idk but they do last around 15-18 hrs depending on volume.

  Answered by Ozz17 7 years ago

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