PadMate MH315 Wireless Bluetooth Headset works with most Bluetooth mobile phones for radiation-reduced phone calls, but it also connects to a PC (with Bluetooth app.) for Skype, Google Talk, Yahoo Messenger and MSN app. For convenient user experience, it has volume control buttons for easy operations The functions of the "Whale" are Similar to most Bluetooth headsets or earphones: it has all the related functions, such as mute, call waiting and shifting calls between mobile phone and handset.