Patent attributes
Portable fitness monitoring systems, and applications thereof, are disclosed. In an embodiment, a portable fitness monitoring system includes a portable fitness monitoring device, a sensor in communication with the portable fitness monitoring device for sensing performance parameters during a physical activity conducted by the user and communicating performance parameter data to said portable fitness monitoring device, a portable music device coupled to the portable fitness monitoring device, and an audio output device coupled to the portable fitness monitoring device, wherein music is transmitted from the portable music device to the audio output device through the portable fitness monitoring device.