Earbuds charge time：Approx 1 hour Wireless connection：5.2 Charging case charge time：Approx 2.5 hours ( wired charging ) Single earbud net weight：Approx 4.9g Earbud dimensions：25.4 * 20.3 * 21.3 mm total weight including charging case:Approx 55g Charging case dimensions:65 * 48 * 26mm Call duration:Approx 3 hours ( noise cancellation off , 50% volume ） Communication range:10 m ( open space free of obstacles ) Music playback time:Approx 6 hours ( noise cancellation off , 50% volume ) Charging port:Type-c Standby time:Approx . 28 hours ( noise cancellation off , 50% volume ） Charging case input parameters:5V 0.5A MAX ( wired） Single earbud battery rated capacity / power:35 mAh / 0.13 Wh Earbud input parameters:5V 120mA MAX ( single earbud） Charging case battery rated capacity / power:470 mAh / 1.78 Wh Package contents: Charging case x1 Earbuds x2 Ear tips x3 pairs ( S / M / L / . M pre-installed ) Charging cable x1 User manual x1