1, the decoding chip in the mobile phone decodes the MP3 and other music files, and then codes and compresses into data packets, which are sent to the Bluetooth headset through Bluetooth in the form of digital signals;
2, the Bluetooth headset receives digital signals, and through the digital to analog conversion chip inside the Bluetooth headset, decompress and decode the received data packet to convert it into an analog signal that the adult ear can understand;
3, the received analog signal amplification, need to use the signal amplification chip inside the headset;
4, the earphone unit receives the amplified signal and emits a sound, at this time the ear can hear.
Mainly because some Bluetooth headsets need to trigger the Bluetooth function by opening the bin, so that the headset is connected to the mobile phone, which is said to be open to connect the headset. The operation is very simple.
The former will pop when you open the cover of the earphone charging compartment and the latter will connect the earphone when you open the cover
After the headset is opened, contact the Bluetooth headset function key to connect the headset to automatically enter the power-on pairing mode. After the headset is closed, touch the function key to disconnect and shut down.