Bluetooth headsets and wired headsets work differently, Bluetooth headsets need to connect to the device via wireless signals, so they need a built-in battery to provide power. Wired headphones, on the other hand, connect directly to the device via a plug-in cable and do not require a built-in battery. Therefore, Bluetooth headphones need to be charged, wired headphones do not. Charging is to make the battery inside the Bluetooth headset fully charged to ensure the normal operation of the Bluetooth headset.
There is a lithium battery inside the Bluetooth headset, so the bondage of the wired headset is banned, and how to transmit the frequency without charging