Having used them for a year, they developed a bit of a glich, so I reported it to T, who said return them & we'll check them out (being over 12months old & well used). I returned them, but at the same time I ordered a new pair because these wonderful things had become a way of life, - no cables, no belt pack - just plug & play, swap guitars & amps on the run. Thomann were brilliant and replaced the original defect ones with a new pair. Having two pairs is a perfect world!! - total redundancy & convenience! My old other radios have been relegated to headset duties now! ...but I look forward next to hearing that Xvive have developed a similar pod type head mic - I would buy one immediately!! I've knocked one star off reliability because of recurring probs with 1st pair, dont if it was design fault or manufacture but it didnt stop me from buying a second set!