Definition of Bluetooth earphones
    Bluetooth earphones are the application of Bluetooth technology to hands-free earphones, allowing users to easily communicate in various ways without the hassle of wires.
    Types of Bluetooth earphones
    1. Single ear type: representative models (S30, H10, etc.)
Single ear Bluetooth earphones are mostly wireless and compact styles that can be worn directly on the ear. Their main function is to answer and end calls, and they can adjust the volume. Some models of single ear Bluetooth earphones also have dual microphone (BH-310), triple microphone (BH-907), etc., which implement multi microphone noise cancellation algorithm processing technology.
    2. Stereo: Representative models include S60, etc
    Stereo Bluetooth earphones are based on the A2DP Bluetooth stereo protocol supported by mobile phones. Only mobile phones that support A2DP Bluetooth stereo protocol can be connected to stereo Bluetooth earphones to enjoy music. Stereo Bluetooth earphones come in various styles such as neck hooks, earphones, clips, and glasses, with both neck hooks and clips being wired Bluetooth earphones. In addition to answering and hanging up calls, some stereo Bluetooth earphones also have a liquid crystal display screen, which not only allows for easy viewing of incoming phone numbers but also displays song titles and lyrics.
    3. NFC Bluetooth earphones: Representative model: Pico IP39
    Bluetooth earphones support NFC function, and pairing Bluetooth earphones with NFC enabled phones only requires a gentle touch Touch to achieve power on pairing and connection, eliminating the traditional tedious pairing process.
    In addition, there are some functional Bluetooth earphones, such as solar powered Bluetooth earphones, bone conduction Bluetooth earphones, necklace style Bluetooth earphones, and so on.