Large-Driver Bluetooth Earphones These earphones have a Bluetooth wireless connection allowing you to listen to music without being connected to your phone or mp3 player. With an integrated microphone, you can make and receive phone calls securely without having to control or keep your handset. The built-in rechargeable battery has a continuous playback or phone use time of up to 5 hours. Among many customers and tech bloggers, it is popular. The rechargeable battery of 80mAh is sufficient to run up to 5 hours.