Abstract: An adjustable occlusion headphone includes a housing having a face, a resilient seal member on the housing, adapted to surround the user's ear, and with the face of the housing form a chamber enclosing the user's ear. A speaker communicates through the face of the housing to provide sound to the user's ear. There is at least one port in the face of the housing. A passage extends from each port to the exterior of the housing. A valve member associated with each passage, is operable between an open position and a closed position, and an operator for operating each valve member between its open and closed position to control sound communication from outside the housing to the chamber.

Abstract: An athletic training system includes a personal electronic device having a processor, a memory, and a GPS sensor. The processor runs an application that calculates at least one of distance traveled, elevation change, and speed, of the user carrying the personal electronic device, and based upon location information obtained from the GPS sensor provides a training-related message to the user based upon at least one of the calculated distance traveled, elevation change, and speed.

Abstract: An adjustable occlusion headphone includes a housing having a face, a resilient seal member on the housing, adapted to surround the user's ear, and with the face of the housing form a chamber enclosing the user's ear. A speaker communicates through the face of the housing to provide sound to the user's ear. There is at least one port in the face of the housing. A passage extends from each port to the exterior of the housing. A valve member associated with each passage, is operable between an open position and a closed position, and an operator for operating each valve member between its open and closed position to control sound communication from outside the housing to the chamber.

Abstract: A cable cinch for an earphone cable includes first and second cinch elements. The first element has a top and a bottom with a sidewall therebetween, front and rear openings in the sidewall, and first and second posts extending between the top and bottom walls, intermediate the front and rear openings. The second element has a top and a bottom with a sidewall therebetween, front and rear openings in the sidewall, and first and second posts extending between the top and bottom walls, intermediate the front and rear openings.

Abstract: An athletic training system includes a personal electronic device having a processor, a memory, and a GPS sensor. The processor runs an application that calculates at least one of distance traveled, elevation change, and speed, of the user carrying the personal electronic device, and based upon location information obtained from the GPS sensor provides a training-related message to the user based upon at least one of the calculated distance traveled, elevation change, and speed.