Here is a Bluetooth headset with a dialer that can work like a tiny phone on your ear. It has a lightweight, ergonomic design and supports Micro SIM & TF cards. You can use the SERVO L9 Bluetooth Headset with iOS, Android, and Windows devices.
The device has a 280mAh battery and lasts up to 8 hours on a full charge. It also has a 0.87 inch display on it for call and music control.