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片方の耳から音が出ない | Bose QuietComfort Earbuds II
Ensure your earbuds are properly seated and fully charged.

If the issue persists, refer to Wearing and adjusting your earbuds or Earbuds will not turn on for further guidance.
イヤホンを1つだけ使用する場合は、必ず適切なイヤホンを使用するか、製品をソフトウェアバージョン1.3.26以降にアップデートしてください
ソフトウェアバージョン が1.3.26より前の場合
- 右のイヤホンは 「プライマリ」またはメインのイヤホンです。ソースデバイスからの音声を中継して左のイヤホンを制御します。 オーディオストリーミングで右のイヤホンをケースに入れてケースを閉じると、オーディオが停止し、イヤホンがオフになります
- 右のイヤホンには、通話用のマイクも付いています。 通話には必ず適切なイヤホンを使用してください
Restart your personal device (Phone, Tablet, Computer)
Electronics may need a reset to resolve minor issues. To do this, power off the device completely, wait a few seconds, then turn it back on. This process can help refresh the connection and resolve any potential issues.
Try resyncing the earbuds.
- Check Contacts: Inspect the charging contacts on both the earbuds and the case for any debris.
- Insert Earbuds: Place both earbuds into the charging case. If the light inside the case doesn’t turn on, press down gently on the earbuds to ensure a proper connection.
- Close Case: Close the lid of the case and wait for the front light to turn off, then reopen the case.
- Test Audio: Put the earbuds in your ears. After a few seconds, you’ll hear battery prompts, and then you can start using them.
Try disabling Auto Play/Pause.
Your earbuds use in-ear detection to sense when you’re wearing them. If the ear tips and stability bands don’t fit well, playback may stop. Disabling this feature can help determine whether they fit poorly or need replacing.
- Open the Bose app and select your earbuds.
- Tap the Settings
icon in the top-right corner of the app.
- Scroll down and tap In-Ear Detection.
- Tap the slider next to Auto Play/Pause. The slider will turn gray, indicating that the feature has been disabled.
If audio returns after disabling this feature, perform an earbud seal test to check the fit. For more information, see Wearing and adjusting your earbuds.
製品をRESETしてください。
スマートフォンを再起動するのと同じように、お使いの製品も時折RESETが必要になることがあります。小さな問題を解消するためです。詳しくは、 製品のRESET方法をご覧ください。