The Razer Hammerhead True Wireless are Bluetooth-only truly wireless headphones. While they don’t support aptX or aptX(LL), they have a dedicated Gaming Mode which seems to help reduce the latency considerably, though our test results were inconsistent among different operating systems.
Note: From what we could tell, turning ‘Gaming Mode’ on doesn’t seem to alter any other settings other than lowering latency. If you notice any other differences while in ‘Gaming Mode’, let us know in the discussions below.