Plantronics BT300 Bluetooth USB Adapter - Headsets Plus Store
Open.BOX - Plantronics BT300 Bluetooth USB Dongle Adapter for Voyager 5200 UC Legend UC PLT - Newegg.com
PLANTRONICS REPLACEMENT BATTERY FOR THE SAVI 740/440 AND WH500 HEADSET #84598-01
Plantronics Voyager Legend UC B235 USB PC Bluetooth Headset - Black 87670-01 with Plantronics BT300 Bluetooth USB Dongle Adapter - Renewed - Walmart.com