HTC BoomSound with Dolby Audio Surround Sound
Experience cinematic sound with Dolby Audio Surround.
Partnering with Dolby, the HTC One M9 recreates the 5.1 surround sound effect to deliver true left and right channel sound for a cinematic experience. HTC BoomSound™ with Dolby Audio provides optimised sound, even from multi-channel online sources.
Available both on BoomSound audio and headphone modes, your films and games have never sounded better.
Learn more: http://htc.com/htcone