- Noise-canceling microphone with semi-rigid boom rotates 360r for left or right side usage- Digital sound enhancements with DSP technology- 30mm mono (monaural) speaker delivers crystal clear audio- Durable padded headband and plush leatherette ear cushion provide all-day comfort- Easily pairs two devices simultaneously - mobile phone, tablet, or computer (Windows/Mac)- Up to 12 hours of talk time with an operating range of up to 30 feet- Features include voice dialing, call waiting, and last number redial- Includes USB dongle, charging cable, and handy carry case for storage and portability- Not recommended for SIP phone applications