Bose QuietComfort 35 (Series I) Wireless Headphones, Noise Cancelling - Silver

World class noise cancellation makes quiet sound quieter and music sound better; Connectivity Technology: Wireless 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; Headphones:18 cm H x 17 cm W x 8.1 cm D (0.52 lb/234 g)