Find the serial number of your AirPods.
iPhone User Guide - Apple Support
充実の品 AirPods Pro 第一世代 Lightning ヘッドホン
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How to find the model and serial numbers of your AirPods
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Use Apple wired headphones - Apple Support (IN), earpods usb c
Contact - Official Apple Support
How To Contact Apple Customer Support : HelloTech How
Play background sounds on AirPods – Apple Support (MY)
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AirPods Support - Official Apple Support
Stolen AirPods - Apple Community