Supra-aural. Rests on a charging base. Bluetooth connectivity, can pair up to 4 different devices and save their positions on the base for easy switching between a phone, a tablet, and a computer. Professional sound with Qualcomm QC3020. Listen to music and make calls. Microphone with dual noise reduction. Very lightweight. Up to 9 hours of talk time and 54 hours of recharge on the base.