POLY Plantronics - Blackwire 3215 - Wired Single-Ear (Mono) Headset with Boom Mic - USB-A to connect to your Mobile, PC or Mac

Connects To: Simply and easily connects to PC or Mac via USB-A and to mobile/tablet via 3.5 mm connector.

Ideal For: Users transitioning to a PC for telephony, webinars, conference calls, and other applications.

Audio Performance: Clear, natural and rich audio with wideband audio, a noise-canceling microphone, and enhanced digital signal processing (DSP). SoundGuard technology: Acoustic limiting for protection against sounds above 118 dBA

All-day Comfort: A lightweight metal headband offers durability and a comfortable custom fit.

Wearing Style: over the head wearing style with one earpiece.