In the car, on the street or at the airport, be heard above the noise with the Plantronics Voyager 835 Bluetooth headset. Dual-mic Audio IQ noise canceling technology provides clear sound by separating & enhancing your voice to minimize distracting background sounds. Windsmart technology reduces the wind noise your callers would otherwise hear. A comfortable, contoured eartip channels sound directly into your ear, so you can focus on what’s important—your conversation. Plantronics Quick Pair technology lets you easily pair your headset with your Bluetooth phone & multipoint technology lets you stay connected with two Bluetooth phones—like a PDA & personal phone— all from one lightweight headset. Zoom USB (Universal Serial Bus) Bluetooth Adapter The Zoom Model 4320 Zoom Bluetooth Adaptor plugs into a personal computer to provide a wireless connection to another Bluetooth-enabled device like the Plantronics Voyager 835 Bluetooth Headset. The Model 4320 supports 723K bits per second data throughput, the maximum allowed by the Bluetooth version 1.2 standard. The USB (Universal Serial Bus) Adaptor comes complete with a software installation wizard which makes setup of the Bluetooth protocol stack fast & easy. The Bluetooth Piconet protocol supports concurrent connections with up to seven other Bluetooth devices. Security is ensured with the implementation of a Bluetooth security key & data encryption. Each Zoom Bluetooth adaptor contains a unique link key that prevents unauthorized access to the attached computer. The key is transmitted in a secure environment to prevent interception