The Motorola Roadster2 (TZ710) features mic noise reduction/echo cancellation, The CrystalTalk dual mic solution in Roadster2 has 2X the noise suppression as the leading competitor BlueAnt S4 and 33% better than Jabra Cruiser. Also features, voice controls, 1 speaker, 20 hours talk time, dedicated mute button, one touch mute button allows for easy muting capability during calls, motion on/off, FM transmitter, speech to Text/text to speech and never be lost with the Motorola Car Finder app which helps to remember your parked car's location so you don't have to.