Cardo SCALA 500 is the most advanced and versatile Bluetooth™ powered wireless headset for mobile phones. It provides hands-free talk on Bluetooth enabled mobile phones through a short-range wireless connection between your phone and the headset. Despite its small size, it offers extraordinary sound quality performance, even under windy outdoor conditions. Our WindGuard™ solution effectively filters the wind blowing into your microphone, making way for your voice to reach the other party, significantly clearer than usually found in headsets.