Shorter-than-advertised battery life: Poor power management in driver/firmware or a mismatch between real-world use and lab claims. Mitigations: lower volume, disable always-on features (voice wake, constant LED), and update firmware.
Look for a "Generic Bluetooth Adapter" or an "Unknown Device" under the Bluetooth or Other devices section. Jieli Ac4100 Bluetooth Driver
It is important to note that the Jieli AC4100 can be packaged in different form factors—some units are self‑contained portable speakers, while others are simple USB dongles. The driver described below should work for most variants that use the AC4100 chip. disable always-on features (voice wake
Open , right-click your Jieli Bluetooth device, and select Uninstall device . right-click your Jieli Bluetooth device