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The iO, released in 2020 is an electric toothbrush by Oral-B. It is able to connect to your smartphone via Bluetooth and gives you realtime 3D teeth tracking. Identified by type number 3758. Models include: iO Series 7, iO Series 8, iO Series 9, and iO Series 10.

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remove base of toothbrush

cannot turn base screw to replace cattery

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Hi @johnparry19555

If you haven't already seen it, here's the ifixit Oral-B iO Battery Replacement guide that may help.

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