Buying a Bluetooth headset is mainly for what to buy? It depends on what you do mainly by using it - 1 for language learning. Just use a lower-priced headset, with earmuffs with volume adjustment as well, 2 for listening to news. Ordinary electromagnetic headphones can be used. 3 for listening to music. For general music, just buy a mid-range machine, such as auscultation or head-mounted dynamic headphones. If you want to enjoy high-quality music, you should buy high-fidelity headphones, such as high-quality moving coil, flat film or condenser headphones. Among them, the cost-effective BRD headphones are the first choice. 4 easy to use. Wireless Bluetooth headsets don't need to be connected, they are very convenient to use, and there are headphones with radio function, so you can listen to all kinds of languages and music programs at any time. 5 channels. Mono and dual-channel amplifiers must be equipped with single and dual-channel headphones.