The verdict
A good gift for bass fans, a poor blind recommendation
Choose WH-ULT900N for a hip-hop, electronic or movie fan who enjoys deliberately oversized bass and will use Sony's app to tune it. They also get multipoint, wear detection, folding travel storage, analog audio and effective everyday ANC. Skip them for a detail-first listener, wet workouts, USB-C audio or anyone who would rather not check the serial number against a service program.
Why it works
- ✓ The ULT button offers two extra bass levels while the app provides EQ for taming the default balance
- ✓ Sony claims 30 hours with noise cancelling or 50 without; a 10-minute charge can provide up to five hours
- ✓ At about 255 g, they fold into an included case and can connect to two Bluetooth devices
Tradeoffs
- × Independent reviewers consistently describe the default tuning as heavily bass-emphasized rather than balanced
- × USB-C is for charging, not digital audio; wired listening uses the included 3.5 mm cable
- × Certain serial ranges can develop cracks at the rotating headband joint and are covered by Sony's Canadian service program
Check the hinge program before wrapping them
- Model: confirm WH-ULT900N. Sony says affected units use model number YY2981, printed inside the left side of the headband.
- Serial ranges: Sony Canada lists black 1000001–1164062, off-white 2000001–2040144 and forest gray 3000001–3026514 as affected.
- Coverage: Sony says affected units may crack at the rotating shaft and offers free service through January 31, 2027, subject to its limited-warranty terms.
- Seller: for new or used stock, ask for the serial number and proof of purchase before the return window closes; contact Sony Support when an affected unit is identified.
What the standard package is meant to cover
| Decision | Included or built in | Not included |
|---|---|---|
| Travel | Folding WH-ULT900N headphones and carrying case | Airplane two-pin adaptor or water-resistant sport protection |
| Connections | USB charging cable, analog headphone cable, Bluetooth 5.2 with SBC, AAC and LDAC | Wall charger or USB-C digital-audio playback |
ULT WEAR or a more balanced alternative?
| Decision | Choose ULT WEAR | Choose the alternative |
|---|---|---|
| Sound taste | The recipient actively asks for physical, exaggerated bass and likes app EQ | Choose Sony WH-CH720N or a Sennheiser alternative for a subtler tonal balance |
| Features | Folding storage, wear detection, multipoint and ANC matter at a mid-range price | Choose a flagship Sony or Bose model when stronger all-round refinement justifies the premium |
| Wired use | A 3.5 mm analog connection meets the recipient's needs | Choose a USB-audio model for one-cable laptop listening and charging |
Quick answers for the recipient
Is all WH-ULT900N stock affected by the hinge notice?
No. Sony Canada identifies specific colour-based serial ranges. Check the serial inside the left hanger against Sony's current notice rather than assuming every unit—or none—is affected.
How bassy are they?
They are bass-forward even before the two ULT boosts. That can be fun for bass-led music and movies, but voices and detail may feel masked; the Sony app EQ is part of getting the best result.
Can they connect to two devices?
Yes, they support Bluetooth multipoint. Sony's LDAC behaviour can impose feature tradeoffs, so confirm the chosen codec and multipoint settings in the app.
Can USB-C carry audio?
No. The USB-C port charges the headphones. Use Bluetooth or the included analog cable for listening.
Are they suitable for workouts?
They have no advertised waterproof rating and are full-size over-ear headphones. Choose a sweat-rated model for training, rain or snow exposure.
Sources
- Sony Canada: ULT WEAR WH-ULT900N — Official Canadian identity, bass modes, ANC, battery, app and multipoint features; checked August 6, 2026.
- Sony Canada Support: Service program for WH-ULT900N ULT WEAR headphones — Official affected serial ranges, failure description, coverage period and service instructions; modified June 30, 2026.
- SoundGuys: Sony ULT WEAR review — Independent battery test, ANC, tuning, fit, connections and alternatives.
- What Hi-Fi?: Sony ULT Wear WH-ULT900N review — Independent feature, comfort, battery and sound-quality assessment.
Exact-model Amazon.ca search for Sony ULT WEAR WH-ULT900N. As an Amazon Associate, XmasGoat earns from qualifying purchases. Verify model, serial range, colour, seller, condition, included case and Canadian warranty before ordering.