Poly Voyager 4245 Office Wireless Bluetooth Headset System Microsoft

The Poly Voyager 4245 Office Bluetooth Headset is a unique wireless headset letting you connect to your desk phone, computer and mobile phone. If you need to leave the office and use your headset on your cell phone, you can!

When you're in the office, you're covered with 328 feet of wireless range to walk and talk hands free and wire free. 

In addition, you'll have up to 5 hours of battery talk time on a single charge per battery (2 batteries included). Ultimately giving you unlimited battery by being able to swap in a new battery when one runs low.