Received the watch to give as a gift 2 weeks prior to giving it. I hadn't tried to set it in case the style wasn't quite what was hoped for. It was not functional out of the box. Instructions said to charge with either 10 minutes of direct sunlight or 4 hours of indoor lighting, but it still didn't respond. I asked the merchant for advice and was told that it could take 4-6 days, but they will stand behind the watch. Another 24 hours and all is well. Watch runs well for days now.
JBL Tune 120TWS True Wireless in-Ear Headphones - White