Description
Bose QuietComfort Earbuds II – Full Specifications
| Specification | Details |
|---|---|
| Brand | Bose |
| Model | QuietComfort Earbuds II |
| Product Type | True Wireless Noise-Cancelling Earbuds |
| Fit | In-ear |
| Noise Cancellation | Adjustable Active Noise Cancellation (ANC) |
| Personalized Audio | Bose CustomTune Technology |
| Transparency Mode | Aware Mode with ActiveSense |
| Microphones | Built-in microphone system |
| Bluetooth Version | Bluetooth 5.3 |
| Bluetooth Range | Up to 9 m / 30 ft |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Profiles | A2DP, AVRCP, BLE, HFP, HSP, PBAP, SPP |
| Chipset | Qualcomm S5 Audio SoC |
| Multipoint Connection | No; one active device at a time |
| Device Memory | Remembers up to 7 paired devices |
| Controls | Capacitive touch controls |
| Volume Control | Yes, directly from earbuds |
| Independent Earbud Use | Yes |
| Adjustable EQ | Yes, through Bose app |
| Water/Sweat Resistance | IPX4 |
| Battery Type | Rechargeable lithium-ion |
| Earbud Battery Life | Up to 6 hours |
| Total Listening with Case | Up to 24 hours |
| Additional Case Charges | Approx. 3 full charges |
| Earbud Charging Time | Approx. 1 hour |
| Case Charging Time | Approx. 3 hours |
| Quick Charge | 20 minutes provides up to 2 hours |
| Charging Interface | USB-C |
| Wireless Case Charging | No |
| Earbud Dimensions | 1.72 × 3.05 × 2.24 cm |
| Weight per Earbud | 6.24 g |
| Charging Case Dimensions | 5.94 × 6.63 × 2.67 cm |
| Charging Case Weight | 59.8 g |
| Model Number | 435911 |
Bose’s official specifications confirm the Bluetooth 5.3 connection, 30-foot range, Qualcomm S5 chipset, SBC/AAC codecs, IPX4 protection and battery specifications. Bose
CustomTune Technology
When the earbuds are placed in the ears, CustomTune uses an audio tone to measure the acoustic response of each ear. The earbuds then personalize the sound and noise cancellation based on that measurement. Bose Assets
The supplied Fit Kit includes three sizes of eartips and three sizes of stability bands, allowing users to combine them to obtain a more secure and comfortable fit. Bose Assets
Battery & Charging
The earbuds provide up to 6 hours of listening per charge. The case supplies approximately three additional charges, providing up to 24 hours total. A 20-minute quick charge delivers up to 2 hours of playback. Bose
What’s in the Box
The standard package includes Bose QuietComfort Earbuds II, charging case, three pairs of eartips (S/M/L), three pairs of stability bands (S/M/L), USB charging cable, and product documentation. Bose Assets
Recommended Description for Quotation / Website
Bose QuietComfort Earbuds II True Wireless Noise-Cancelling Earbuds – Bose CustomTune Personalized Audio, Adjustable Active Noise Cancellation, Aware Mode with ActiveSense, Bluetooth 5.3, Qualcomm S5 Audio SoC, SBC/AAC, 30ft/9m Wireless Range, Capacitive Touch Controls, Adjustable EQ, Independent Single-Earbud Use, IPX4 Sweat & Water Resistance, Up to 6 Hours Battery Life / 24 Hours with Charging Case, USB-C Fast Charging, Bose App Support, S/M/L Eartips & Stability Bands. Bose
Availability note: Bose’s support records show that the QuietComfort Earbuds II were sold from 2022–2025, so for a 2026 supply requirement, it is advisable to confirm whether stock is new/sealed, refurbished, or old inventory.






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