An audio system and method for sending sensor data including a first wearable audio device having a speaker, a first communication module arranged to establish a first connection with a first peripheral device and obtain a first data characteristic of the first wearable audio device, and obtain a second data characteristic of a first application running on a first peripheral device, and a sensor arranged to obtain a sensor data. The first wearable audio device or the first peripheral device are arranged to: compare the first data characteristic and the second data characteristic, and send or receive the sensor data obtained from the sensor to the first peripheral device for use with the first application if the first data characteristic and the second data characteristic match.