Even though my phone are within 2 feet of the device I loose connection. aber das sollte man vor dem kauf verstanden haben. I bought these headphone to use with my chrome book. Someone help! Came a little flat, so I put socks inside to perk them up. Sound was mediocre nothing special but they are pretty comfortable. It is a really nice deal on Amazon,These earbuds are wonderful-they pair up immediately,Sounds like I am on a speaker phone,perfect for listening to music ?? Summary:Sound quality - good but no better than my Bose Sound sport or Quiet Comfort 35Noise cancellation - better than Apple AirPods Pro but again comparable to Bose Q35 ANCBattery life - acceptableComfort - acceptableConclusion:After first 24hrs of use, I have serious purchaser?s regret. My favorite t shirt! The sound quality is better than my AirPod Pros and any of my BeatsX products.