The single-ear bluetooth headset adopts advance noise canceling technology to provide you with more stable and clearer sound quality. The wireless headset has a built-in 180mAh battery, and the battery capacity of the charging Case is 1000mAh.The wireless headset have a playtime of 42 hours on a single charge. The charging case can recharge the bluetooth headphones 4 times, so you can get 180 hours total playtime from a fully charged charging case.Besides,this wireless headphones can connect 2 bluetooth devices at the same time.This bluetooth earphones has three charging methods.While charging, the bars on the digital display on the charging case gradually increase from the first bar to the fourth bar. When fully charged, the red light of the wireless earphones and the display bar of the charging case will disappear.1. There is a type-C socket on the bluetooth earphones, you can use the type-C cable to connect to charge it.2. Put the wireless earbuds into the charging box, so that the mold shapes of the bluetooth earbuds and the charging box are exactly matched, so that the earphones can be charged.3. Insert the wireless earpieces into the charging slot on the charging box to charge.The charging box has two charging methods.When charging, the digital display number decreases from 100 until the number disappears when charging is complete.1. There is a USB C jack on the charging box, you can use the USB C cable to charge the charging box and bluetooth earpieces directly.2. Put the charging case on the connected wireless charging pad.The headset with microphone is set up with multi-function buttons that allow you to easily answer/end calls, reject calls, play/pause music, adjust volume, and wake up siri.This hands-free headset allows you to free your hands when talking, especially suitable for housework, video conference taking notes, driving navigation, especially for truckers/truck drivers.