The Plantronics Blacktop 500 Bluetooth Headset is best for those who like to listen in vehicles. This headset doesn’t compromise on quality just because it has only on earcup. The Blacktop 500 features a smart sensor which turns the sound on, for both audio and calls, only when driver puts it on head. Apart from this hassle free function this headphone has a noise cancellation and in-vehicle charging option – required only if it goes out of juice after 10 hours of continues work. Flexible, reinforced headband and cushioned earcup make it easy to wear all day. The controller can by clipped anywhere shirt or belt to answer calls, adjust volume, or mute the mic without taking your eyes off the road. Thanks to USB it can be used for voice conversations on computers as well.
Available at amazon.com for $130