Bose QuietComfort 45 Repair

Author: Nicolas LaCortiglia (and 3 other contributors)

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Click here for an informative guide that will help to solve common problems with the Bose QuietComfort 45 headphones.

The Bose QuietComfort 45 is a noise cancelling headphone model that was released on September 23, 2021. Its model number is 845217-0100. It comes in the colors ‘Black’ , ‘White Smoke’, ‘Midnight Blue’, and ‘Eclipse Gray’. One of the main features of the headphones is noise cancellation. The headphones are by default in 'Quiet Mode', which is noise cancelling mode, but can be switch into 'Aware Mode' which allows the user to hear what's happening around them. The headphones can be connected to the Bose App on many devices. The Bose app will allow you to install any needed updates, tweak headphone settings, or just overall have more control over your headphones.

Black, white, navy, or gray headphones that read Bose on the back of each earphone. The left earphone has an L on the inside of the earphone, and the right earphone has an R on the inside of the earphone. The left earphone has audio port and a pill-shaped button which controls noise cancelling mode at the bottom of the earphone. The right earphone contains the USB-C charging port at the bottom of the earphone, as well as the volume buttons and the multifunction button which are located near the USB-C charging port.

Box contents

QuietComfort® 45 headphones
Carry case
12" USB-C charging cable
3.5 mm to 2.5 mm audio cable

Headphones: 7.25" H x 6" W x 3" D (8.5 oz)
Carrying case: 8.3" H x 5.7" W x 2" D (6.64 oz)

Bluetooth range: up to 30 ft (9 m) (may vary depending on obstructions and devices in the area)
Bluetooth version: 5.1

Battery life: Up to 22 hours (based on tests by Bose in which the headphones were continuously played at 50% volume)
Battery charging time: Up to 2.5 hours
Quick 15-minute charge: For up to 3 hours
Battery charge method: USB-C

Power/Bluetooth switch
Noise Cancelling control button
Volume up (+)
Volume down (-)
Multifunction button
- Play/pause (one press)
- Skip forward(double press)/skip backward(triple press)
- See pages 18-19 of the device manual to see full functionality (see Additional Information for device manual link)