Before downloading any driver, you must identify the exact chipset. Two different BT-118 dongles may use completely different chipsets.
Most BT-118 models utilize technology (or newer versions like 5.3 in recent updates), offering a range of approximately 10 meters. It is primarily a Plug-and-Play device for audio applications, but when used as a PC adapter, it may require manual driver installation to enable full profiles like A2DP (audio streaming) or HFP (hands-free calling). How to Install the BT-118 Driver bt-118 wireless dongle driver