What should have been 15 minutes took hours. but that is after he has worn them for 9+ hours. I am disappointed in this product as i expected it to protect my $250 invesment, but now I am back to square one looking for the right case but this time im out $20 bucks. Bluetooth connection is quick and seamless as well as the connection is very strong, distance can really depend on your surroundings. Stereo imaging was very poor, and I surmise this might be due to the passive woofers on the sides of the speakers. 5 or 8 and ordered these socks in medium. The item is great and works with my phone perfectly without any issues so the only reason I gave it 1 star is because of the color, otherwise it’s great. Amazon said I cannot get a refund (they used to give refunds much easier years ago so something has changed there too. Sennheiser is known for great headphones, so they are likely to keep functioning longer and function better than ones that cost less, and this is a good price for good functionality. Many other sweat pants run up my lower calf.