Bluetrek is a world leader in Bluetooth headsets and devices. Bluetrek blends innovative design with cutting edge technology for mobile lifestyles. All Bluetrek products boast excellent performance with extended talk time, universal compatibility, comfort and lightweight design. The newest addition in their offerings include the Bluetrek Cresendo which features Bluetrek's Talk2Me voice-command services and Crystalline voice-clarity technology. The Bluetrek Crescendo features make it a perfect solution for style conscious audiophiles who demand the best sound, comfort and technology. This headset is designed for the serious user and satisfies even the most demanding consumers by offering clear signal enhancement, 30dB to 50dB signal-to-noise ratio improvement, dual mic technology, Bluetrek Crystalline voice technology, wind-noise resistance, digital signal process (DSP), and Crystalline microphone clarity. Overall this headset is feature rich and very attractive.