I use this device in an industrial plant and the range is great. I can exit my office through two solid concrete walls and walk about 100 feet from the base before disconnecting. The battery life is okay, but after a long day of calling or very long calls (over 3 hours) the battery will die. The device is convenient in that it can also be connected to a computer and a mobile phone, so you can use a headset for Skype or answer calls on a mobile phone. A great unit is bought back once the unit dies. It's been like this for four years.
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