Brand New in Box BONE CONDUCTION TECHNOLOGY - Bone conduction technology and OpenFit design deliver music through your cheekbones, ensuring your ears remain completely open to ambient sounds for maximum situational awareness during long-term wear. BLUETOOTH CONNECTIVITY - Modern wireless headphones with Bluetooth v4.1 connectivity and convenient multipoint pairing compatible with your iOS and Android Bluetooth-ready smartphones or tablets and Mac and PC computers and laptops. DESIGNED FOR LONG WEAR - Trekz Titanium wraparound headbands are lightweight and flexible to ensure maximum comfort during extended wear. Combined with a long battery life, this compact, slim fit allows you to enjoy continuous music and calls for six hours at a time. QUALITY SOUND - Innovative AfterShokz headphones deliver a premium audio experience. With PremiumPitch technology that delivers a wide dynamic range and rich bass and LeakSlayer technology to significantly reduce natural sound leakage, you are ensured the best on-the-go audio. ULTIMATE DURABILITY - IP55-certified sports headphones repel sweat, dust, and moisture throughout your indoor or outdoor exercise routine. These sturdy workout headphones withstand your most strenuous running, cycling, and more! EQ presets reduce vibration.