For today only, this Plantronics Voyager 510S Bluetooth Headset drops from $149.99 to $39.99 with free shipping at Staples.com. Even better, Staples Rewards members can get 5% back on their purchase bringing the net price down to $37.99. This is the best price we could find for this Bluetooth earpiece by $40. This noise canceling headset features voice controls and has a 33' range and 6 hours of talk time. Sales tax is charged in most states.