These Defender headset is made for everyone that is searching for something very reliable and more advanced. The headset is very comfortable as it has the closed earcup design which makes them easy to fit as well as makes them very cosy. This headset provides an adjustable headband (neckband) for more adjustments. The 10 m operation range provides enough distance for you to freely walk around and still be able to hear sounds playing in your headset. They are compatible with all mobile devices as well as with the PC. Wireless headset provides connection via Bluetooth which is there for most devices. Headset provides good noise-autenuation, making any surrounding noises much more quiet and allowing you to listen to music or head sounds without any noises disturbing you. Additionally it has a built-in microphone (in-line microphone) for speaking on the phone or any PC VoIP programs.