On-ear design with high-comfort ear pads. SoundGuard technology protects from noise spikes and listening fatigue. Connects to mobile devices and tablets via 3.5 mm jack and devices that support USB. 38dB microphone sensitivity ensures noiseless clear audio. Phone headset has an operating frequency range of 100-10000Hz and offers noise cancellation to decrease unwanted ambient sounds. 2-year limited warranty. Sold by each. Black.