Quick overview
Serial Numbers (S/N) and Model Numbers help with warranty, support, and identifying compatible parts. Serial is unique to your unit; model identifies the product family.
Common places to check
On over-ear and on-ear headphones the model or serial is often printed on the inside of the headband, underside of an earcup, or on a small sticker inside a seam.
For true wireless earbuds, open the charging case — many brands place the serial on the inside lid, base, or on a label in the case compartment.
Wired headphones sometimes have model or batch codes printed near the 3.5mm plug, inline remote, or molded connector housing.
Serial and model numbers are commonly printed on the box barcode label, the warranty card, or the purchase invoice.
Open the brand's companion app (or Bluetooth device details) — some headphones show the model and serial under Device Info or About.
If the sticker is hidden, gently remove the ear pad (if removable) — some labels sit beneath the cushion or inside the cup.
Examples & formats
Serial and model numbers vary. Here are typical examples you might see:
WH-1000XM5 or AirPods ProSerial
Y6K3A0B12C or 3D4F5G6789
If you can’t tell which is which — the Model often looks like a short code or product name (brand + name). The serial is usually longer and alphanumeric and may be labeled S/N, SN, or Serial.
Troubleshooting if you can't find a label
- Use a flashlight to inspect seams and recessed areas.
- Carefully remove ear pads (only if removable) to check underneath.
- Search email receipts or the retailer order page for product details.
- Contact support and provide photos — manufacturers often help identify units.
🧠 Tip: Headphone SN are usually 6–12 characters long and may include letters and numbers (e.g., HP123456). Models often include brand and series (e.g., Sony WH-1000XM5, Bose QuietComfort 45).
🔒 Privacy & Safety Note
Serial numbers are unique identifiers. Don’t post them publicly when asking for help — share privately with authorized support only.