ZuM BT Mobile Office Monaural Over The Head Headset, Black

Quick Overview

For smartphones, tablets, laptops. Not for desktop phones (unless Bluetooth capable).
Mic boom rotates 300° so you can wear it on either ear.
Mic boom is completely flexible so you can adjust it in any way that works best for you.
Unidirectional noise canceling microphone.
Charges when docked in base.
Bluetooth version V4.1.
Stand by time: 200 hours.
Talk time: 17 hours from 3.7V, 180mAh battery.
Distance 33 feet.