Total
Handling
Features
Quality

Not bad if you don't have an active instrument

Using these with a Harley Benton BZ-4000 NT. Device fits the socket well and can be folded fairly flat to the body. The construction isn't the best but it is by no means flimsy, the on/off switch could definitely do with improving, it certainly needs to be a different shape to the channel button.

Range is reasonable, works all through my house through several walls and even up stairs. But obviously be aware this uses the same frequency band as a lot of (most) WIFI devices so if you are reliant on this you may need to do some frequency planning.

My biggest complaint is whenever I switch to using the Active mode on my Bass I can hear a high pitched whine. This is easily drowned out when actually playing but is very audible during the quiet times.

I've seen reports of this about other similar devices, some of which explicitly state now that they are not suitable for active devices, something the description or instructions for this do not do.