Philips M1WT/28 Philips Fidelio On-ear Headband Headset White (Discontinued  by Manufacturer) Bass Reflex System for clear, dynamic and balanced bass Double-layered ear-shells engineered for sound precision Acoustic closed-back architecture for best noise isolation Frequency response tuned to discerning listeners' preference In-line mic with pick-up button and a pouch included Connectivity Technology: Wired