The Plantronics Voyager 510SL+ Premium Bluetooth Headset Bundle Package (Includes HL10 Lifter, In-Use Busy Light, Car Charger, & Carrying Case). Allows you to switch between your office phone and your Bluetooth devices (cell phone, laptop or PDA) simply by pressing a button on the headset. Can be paired with up to two Bluetooth devices in addition to your traditional, corded office telephone. Provides up to 6 hours of continuous talk time; wander up to 33 ft. from your base or Bluetooth device. Noise-canceling microphone ideal for noisy environments. Lightweight, ear-hook design with comfortable in-ear ear bud. Retail Price $429.99

What it has to offer :

• Desk phone Adapter turns your office phone into a Bluetooth phone
• One headset solution for wireless communication in and out of the office
• "Smart" technology automatically knows which device you are using—and allows you to take calls from either device at the touch of a button
• Noise-canceling microphone for superior voice transmission
• Headset folds into pocket or purse for quick and easy storage
• Up to 6 hours of talk time and up to 100 hours of standby time
• Supports Bluetooth® headset and hands-free profiles
• Freedom to roam up to 33 feet  from your Bluetooth-enabled device
• Answer and end calls when you’re away from your desk with the touch of a button (HL10)

Premium Bundle Also Includes:

• On-Line “Busy” Light Indicator
• Car Charger
• Belt Clip Carrying Pouch
• USB Headset Charger

NOTE: The Plantronics 510S Voyager is not compatible with cordless telephones.Please see the Plantronics CS55H Home Edition for cordless telephones In order for this headset to work with your cell phone – it must be “Bluetooth Capable”.