Bose QuietComfort Ultra Headphones (2nd Gen): QCUH2-HEADPHONEARN · second-generation over-ear Ultra
Sony LinkBuds Fit (WF-LS910N): LinkBuds Fit WF-LS910N in-ear true wireless earbuds; black, white, green and pink. The open-design LinkBuds Open (WF-L910) and the older LinkBuds S (WF-LS900N) are separate models.
| Specification | Bose QuietComfort Ultra Headphones (2nd Gen) | Sony LinkBuds Fit (WF-LS910N) |
|---|---|---|
| Release year | 2025 | 2024 |
| Launch | Announced 10 September 2025; available from 2 October 2025 Bose | — |
| Noise control | Active noise cancellation; Quiet and ambient-sound Aware modes Bose | — |
| Wireless | Bluetooth 5.4; multipoint connection to two devices Bose | — |
| Digital audio | USB-C; 24-bit / 48 kHz lossless audio support Bose | — |
| Analog audio | 2.5 mm headphone input; included 3.5 mm–2.5 mm cable; headphones must be powered on Bose | — |
| Battery | Up to 30 hours with ANC on and immersive audio off; 23 hours with immersive audio; 45 hours with both off Bose | Earbuds: up to 5.5 hours of music with ANC on and 8 hours off; up to 4 hours of calls; earbud charge about 2 hours, case charge about 3 hours (USB) Sony |
| Charging | USB-C; up to 3 hours for a full charge; 15 minutes for up to 3 hours with ANC on Bose | — |
| Controls | Power/Bluetooth and multifunction buttons; touch volume strip; wear detection Bose | — |
| Weight and size | Headphones about 264 g; 4.5 × 16.0 × 20.5 cm Bose | — |
| In the box | Carry case; 3.5–2.5 mm audio cable; 1 m USB-C to USB-C cable Bose | — |
| Modes | Quiet, Aware, Immersion, Cinema; EQ and shortcuts in the Bose app Bose | — |
| Water resistance | No IP rating; avoid situations where the headphones may get wet Bose | — |
| PC calls | 8.2.20 and later: two-way PC audio over USB-C; app compatibility varies Bose | — |
| Software 10.12.12 | 8 September 2026: LE Audio beta on compatible Android/Windows devices and improved USB calls Bose | — |
| Driver and frequency | — | 8.4 mm driver; closed type; 20–20,000 Hz over Bluetooth (44.1 kHz), 20–40,000 Hz with LDAC (96 kHz, 990 kbps) Sony |
| Noise cancelling | — | Active noise cancelling; Personal NC Optimiser; Ambient Sound Mode and Auto Ambient Sound Sony |
| Bluetooth and codecs | — | Bluetooth 5.3; SBC, AAC, LDAC, LC3; A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP, CCP Sony |
| Multipoint and processing | — | Multipoint connection (two devices); DSEE Extreme Sony |
| Fit | — | Newly designed Fitting Supporters and ear tips Sony |
| Weight and durability | — | About 4.9 g each (with M tips); case about 41 g, 47.2 × 47.2 × 32.6 mm; IPX4 Sony |