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Phonak Nathos Auto BTE Accessories & Compatibility Guide | Japebo
If you use a Phonak Nathos Auto BTE hearing aid, choosing the right accessories (like tubes, earhooks, earmould parts, and cleaning/wax protection) is the quickest way to keep your sound stable and your device comfortable. This guide explains Phonak Nathos Auto BTE compatibility, what to look for when replacing parts, and how to avoid buying the wrong fit.
What “BTE” means for Phonak Nathos Auto accessories
BTE (Behind-The-Ear) hearing aids sit behind the ear and send sound into the ear via either a tube to an earmould or a thin tube to a small earpiece. Because of that, Nathos Auto BTE users most often replace:
Tubes / slim tubes (when sound becomes weaker, tubing hardens, or fit/comfort changes)
Earhooks (if the hook is cracked, loose, or whistling increases)
Earmould parts (if you use a custom mould)
Cleaning and drying accessories (to reduce moisture-related issues)
Wax and moisture protection (depending on your ear-coupling setup)
How compatibility works for Phonak Nathos Auto BTE
For Phonak Nathos Auto BTE, compatibility is usually determined by how sound is coupled to your ear, not just the hearing aid model name. Before ordering accessories, identify which of the following you have:
1) Standard tube + earmould setup
This setup uses a thicker tube and a custom earmould. These users typically need replacement tubing (by diameter) and sometimes an earhook. Small differences in tubing size can affect comfort and feedback (whistling), so matching the existing tubing is important.
2) Thin tube / slim-tube setup
Some BTE fittings use a thinner, more discreet tube to a small earpiece. In that case, the key is matching the exact slim-tube type and length used on your Nathos Auto BTE.
3) Custom earmould details
If you wear a custom earmould, there are often additional variables (mould style, venting, tubing type). The hearing aid is only part of the equation—the mould and tubing determine what replacement parts you need.
How to choose the right Nathos Auto BTE accessory (quick checklist)
Use this checklist to reduce uncertainty before purchasing:
Check your current part: many tubes/hooks have markings or a recognizable shape that helps match replacements.
Match left/right if applicable: some tube systems are side-specific.
Measure tube length (thin-tube systems): the wrong length can pull, cause soreness, or reduce retention.