Nokia dropped a new pair of Bluetooth noise cancelling headphones yesterday, the BH-905. They claim it’s the ‘first product to feature patented multi-microphone-feed-forward active noise canceling technology’. In other words, 10 microphones work in concert – 8 to sample and cancel out ambient noise, 2 to capture speech – to produce crystal clear audio listening and telephone calls. Integrated into the headphone are MP3 player controls, such as skip forward, play, pause and more. A single charge provides up to 24 hours of talk time and 25 hours of audio playback; subtract 10 hours if both Bluetooth and noise cancellation are engaged. Also included in the package is a travel charger and adapters for 2.5 and 3.5mm headphone jacks. The Nokia BH-905 will go on sale this August for about $420.