【High Sound Quality】 These wireless earphones offer clear sound quality, allowing you to enjoy music and calls comfortably. 【Long Battery Life】 They provide 7.8 hours of continuous use, and with the charging case, even longer use is possible. 【Convenient Bluetooth】 Bluetooth V5.46 ensures a stable connection and a transmission distance of up to 10 meters. - Model: M62 - Bluetooth Version: V5.46 - Transmission Distance: 10 meters - Usage Time: 7.8 hours - Headphone Capacity: 90mAh - Charging Case Capacity: 300mAh - Standard: GB 4943.1-2022 I've used them a few times, but they're a bit difficult for me to use (⚲□⚲) I'll pass them on to someone else!