Bose/Engadget 87 100 Expert Score Best noise-cancelling headphones overall Bose QuietComfort Ultra Headphones (2nd gen) 449 Connectivity: Bluetooth | ANC type: Hybrid Adaptive | Customizable ANC: Yes | Max battery life with ANC: 30 hours | Transparency mode: Yes | Weight: 264 grams | Collapsible: Yes (folds both flat and inward) Read our full Bose QuietComfort Ultra Gen 2 review The second-gen version of the QuietComfort Ultra Headphones aren't an entirely new device, but there are impactful upgrades all around.