Hands-on: Pioneer SE-NC21M noise-cancelling headphones review - photo 1Hands-on: Pioneer SE-NC21M noise-cancelling headphones review - photo 2Hands-on: Pioneer SE-NC21M noise-cancelling headphones review - photo 3Hands-on: Pioneer SE-NC21M noise-cancelling headphones review - photo 4Hands-on: Pioneer SE-NC21M noise-cancelling headphones review - photo 5Hands-on: Pioneer SE-NC21M noise-cancelling headphones review - photo 6Hands-on: Pioneer SE-NC21M noise-cancelling headphones review - photo 7Hands-on: Pioneer SE-NC21M noise-cancelling headphones review - photo 8