Over-the-Head 3.5mm Hands-Free Mono Headset Wired Headphone with Boom Microphone for AT&T Nokia Lumia 1020, AT&T Nokia Lumia 1520, AT&T Nokia Lumia 520, AT&T Nokia Lumia 820 FONUS(TM) Brand Over the head style Wired Mono Headset with Microphone. Fits either ear comfortably. Clear communication on both ends. Comfortable bugle for long time wearing, 3.5 mm Mono Headphone with Microphone Boom, On/Off button and clip. Adjustable fillet for different head sizes. High sensitivity on microphone and driver for clear communication. The adjustable headband offers a secure fit without sacrificing comfort. Comes in Retail Package.