Abstract: A physiological function detecting earphone includes an earphone body, an earplug mounted at one side of the earphone body and defining a window, a light processing module including a light sensing module towards the window, and a signal processing module. A detecting method using the earphone by a participant includes the steps of: the participant inserts the earplug in the ear canal thereof; the light sensing module senses the changes of light emitted through the window and then reflected by the wall of the ear canal; the light processing module processes the reflected light changes to get photoplethysmography (PPG) signals; and the signal processing module receives and processes the PPG signals to get physiological information of the participant.

Abstract: A physiological function detecting earphone includes an earphone body, an earplug mounted at one side of the earphone body and defining a window, a light processing module including a light sensing module towards the window, and a signal processing module. A detecting method includes steps: the participant inserts the earplug in the ear canal thereof; the light sensing module senses the changes of light emitted through the window and then reflected by the wall of the ear canal; the light processing module processes the reflected light of changes to get PPG signals; the signal processing module receives and processes the PPG signals to get physiological information of the participant. The window opened in the earplug can gather the light in a narrow area of the ear canal so that reduces effect of manufacturing material on transmittance of light and improves accuracy of the PPG signals and the physiological information.

Abstract: The present invention discloses a Bluetooth audio relay, which comprises: a printed circuit board (PCB); a Bluetooth chip mounted on the PCB for processing the Bluetooth signals and transforming the Bluetooth signals into digital audio signals; an antenna coupled to the Bluetooth chip for receiving and transmitting the Bluetooth signals, and transferring the Bluetooth signals to the Bluetooth chip; memory mounted on the PCB and coupled to the Bluetooth chip for storing digital data; a power supply coupled to the Bluetooth ship for providing power; a codec chip mounted on the PCB and coupled to the Bluetooth chip for transforming the digital audio signals into analog audio signals; and a plurality of audio jacks mounted on the PCB and coupled the codec chip for outputting the analog audio signals