Chips: There are many models and brands of Bluetooth headset chips, and the brand of the chip can determine the function of the Bluetooth headset. Generally speaking, the better chip on the market is CSP, but the price of this brand chip is relatively high.
Appearance: Bluetooth headset is worn on the ear, so the appearance is also very important. Try to choose a good-looking Bluetooth headset. The appearance of some brands of Bluetooth headsets is more fashionable.