Audiosharp AS0848 Sport Noise Isolating In-Ear Headphone with Microphone and Volume Control (Black) Quad-Core Drive Unit and Dynamic Apperance for High Fidelity Sound. Strong Bass. Sport Design and Comfortable Fit, never fall out when you enjoy sport. Noise Isolating.Enjoy whatever you are listening to. Deliver High Precision, Balanced and Clear Sound. 1 Year Warranty. The AS0848 has been designed and engineered to deliver the highest standard of build and audio quality, that is why it is covered by a comprehensive Audiosharp's warranty for one year.