Open Ear Headphone - Mingle with CashWalk #11

89- do they work really well? 

Are these bluetooth? 

Use: Although I intended to use it on my desktop computer, for some unknown reason, the sound goes on and off when I move my head. So I mainly use it for the cell phone that makes my life easier to move around without the phone carrying with me from room to room indoors.

Battery: It provides 30 hours of total battery life. The charging case is equipped with a digital power display that shows the remaining battery life.

For workout activities: It also has a feature of sweat-proof for running intense workout. It fits in ears perfectly to the point where it should stay in place during active workouts and outdoor activities.

Audio: It has a dual microphone that allows clear audio. Its acoustics are very deep into the details of the sound. I experience high notes of music very clearly and beautifully. 

Basic: It is for 5.3 Bluetooth Sport Earbuds. It is capable of being used for long time playback with ear hooks and with digital display.