Product Features Large Capacity: Built-in headphones with 250 mAh polymer batteries and USB charging cable. Enjoy uninterrupted conversation time or music time after about two hours of charging, 500 hours of standby time. Working Time of Earbuds: 20 hours (depending on volume) Comfortable: Our one-eared in-ear ears in an elegant business style are suitable for left or right ears. An ergonomically shaped 180-degree turntable provides a very comfortable seat. Suitable for: With the microphone, you can drive business or sports. Excellent Performances: In-Ear Noise Canceling and Built-in Mic Bluetooth V5.0, HD sound, integrated HD microphone with in-Ear noise suppression for a high connection quality that allows you to enjoy the quality of the high definition call anywhere and use your entertainment for free.
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