Hands Free Bluetooth Stereo Headset by CoolStream with integrated microphone to make and receive phone calls for use with iPhone 7 and Android phones BUILT IN MICROPHONE - Make wireless calls with the touch of a button. NOISE CANCELLATION - Hear your calls and your music with clarity. MANUFACTURER'S GUARANTEE - CoolStream is based in the USA and offers a 1 year warranty if you ever have an issue. COMFORTABLE LEATHER EAR PADS - No more uncomfortable earbuds that keep falling out. WIRELESS MUSIC - One button pairing and excellent sound quality.