Take HD-quality calls with the Bluetooth wireless Explorer 110 Headset from Plantronics. Operating on Bluetooth 4.1, you can connect the headset to two devices simultaneously, and take calls from either device. Additionally, the button on the headset activates voice control for Siri, Cortana, or the Google smartphone assistant to make calls, get directions, or dictate a text. Furthermore, this headset features a DeepSleep hibernation mode, which activates when you're out of range from your phone and keeps the headset charged for up to six months.