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| Attribute | Specification |
| Product Type | True Wireless Noise-Canceling Earbuds |
| Design / Fit | In-Ear (Intra-Concha), Closed-Back |
| Acoustic Calibration | CustomTune Technology (Tailors sound to ear shape) |
| Active Noise Cancellation | Yes (Adjustable Quiet, Aware, and Immersion Modes) |
| Spatial Audio Support | Bose Immersive Audio |
| Connectivity | Bluetooth 5.3 |
| Wireless Range | Up to 30 feet (9.1 meters) |
| Supported Audio Codecs | aptX Adaptive, AAC, SBC |
| Bluetooth Profiles | A2DP, HFP, AVRCP, BLE |
| Multipoint Support | Yes (Pairs with up to 2 devices simultaneously) |
| Microphone System | Built-in microphones with AI-based background noise suppression |
| Control Interfaces | Touch-sensitive controls (Tap, swipe, press-and-hold shortcuts) |
| App Compatibility | Bose App / Bose Music App |
| Battery Life (Earbuds) | Up to 6 hours (Up to 4 hours with Immersive Audio enabled) |
| Battery Life (with Case) | Up to 24 hours total (Provides up to 18 additional hours) |
| Quick Charge Speed | 20 minutes of charging provides up to 2 hours of playback |
| Full Recharge Time | Up to 2 hours for earbuds, up to 3 hours for charging case |
| Charging Interfaces | USB Type-C and Qi Wireless Charging |
| Water Resistance Rating | IPX4 (Sweat and splash resistant for earbuds only) |
| Primary Base Materials | Plastic (PC-ABS), Silicone, Metal |
| Single Earbud Dimensions | 1.18 x 0.98 x 0.49 inches (3.0 x 2.49 x 1.24 cm) |
| Charging Case Dimensions | 2.6 x 2.35 x 1.06 inches (6.6 x 5.97 x 2.69 cm) |
| Single Earbud Weight | 0.25 oz (7.2 grams) |
| Charging Case Weight | 2.1 oz (59.8 grams) |
| Fit Kit & Box Contents | 2 Bose QuietComfort Ultra Earbuds, 3 pairs of eartips (S, M, L), 3 pairs of stability bands (1, 2, 3), Wireless charging case, 12" USB-C cable |
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