Eight month update: radio died in late June. Turned on, all looked fine, 10 minutes later went to do a communication check and there was nothing; totally dead. Replaced under warranty, no questions asked (bought from Baofeng Tech, US based distributor). I would have liked to know what failed, but didn't want to crack it open to see & lose my warranty coverage. 5 months of 1-2 times a week use, then once or twice a month for two months, and dead. Not too great. I realize issues happen and glad it was covered but that is rather poor reliability.