Xvive wireless of the next generation
had long used the U2, so moved to the newest 5.8GHz system, same compact size, more features with the channel selection and option for active PUs. Works really well, as the U2, reliable at first sight.
Only drawback, finding the switches as well as which is the receiver is not straightforward. Everything is kindbof dark grey. I marked the position of the on/off switches with yellow marker paint and marked also the receiver.