World class noise cancellation makes quiet sound quieter and music sound better. Volume optimized EQ for balanced audio performance at any volume. Wireless convenience, with easy Bluetooth and NFC pairing aided by voice prompts. 20 hour battery life per charge; up to 40 hours in wired mode. Noise rejecting dual microphone system for clear calls even in windy environments. Bose QuietComfort 35 QC35 I (Series I) Wireless Headphones (Black). Condition Grade B : (8.00 /10). What is a grade B condition item? Grade B item has previously been used and has some scuffs, scratches, dents, or other small blemishes. This does not affect the functionally it is just cosmetic. What does JoesGE refurbished mean? A JoesGE refurbished product has gone through an extensive testing and repair process which allows the item to function like new. The team at Joes Gaming & Electronics have gone through extensive training to ensure we get your product to function like new. When refurbishing a product we don’t only repair the issue the item has but we also do preemptive repairs based off our vast experience. If we know a certain part fails we replace it beforehand rather than just fixing the original defect. After a repair is completed your item will be tested by our QA team 3 times. Once it is tested we clean and polish the item. After that our item is ready for a new home. JoesGE stands behind every single product we sell. Reach out to us if you ever need our support and our ninjas will be of service.