The new Puma Roadies in-ear headphones feature a 9mm Neodymium drivers that provide a frequency response of 10Hz – 20kHz and a 16-ohm of impedance. These headphones have a sound-isolating design, which blocks unwanted noise. There is also an in-line microphone for hands-free conversations. The Puma Roadies is compatible with Apple’s iPhone. You can purchase the Puma Roadies in-ear headphones for just $34.99. [Product Page]