Anything below Bluetooth 5 is barely usable. The 2.4Ghz freq gets interfered by anything from fluorescent lamps, old Wi-Fi hotspots, old laptops and phones to m

Anything below Bluetooth 5 is barely usable. The 2.4Ghz freq gets interfered by anything from fluorescent lamps, old Wi-Fi hotspots, old laptops and phones to microwave ovens, and if it's not yours, it's somebody else's. You basically have no control over whether your bluetooth devices get interfered.