The Plantronics Explorer 340 is a sleek, lightweight headset that fuses Bluetooth wireless technology with effortless call control for a true hands-free experience. The Explorer 340 headset is easy to use and incorporates all call features like volume, answer/end call, last-number redial, and voice-activated dialing, into one single button. Delivering up to eight hours of talk time, the Explorer 340 provides the convenience you want and the mobility you need to suit your busy, active ...