Jabra 2309820105 QD Binaural Over-The-Head Corded Headset FREESPIN 360 DEGREE MIC - To help you optimize mic placement and eliminate breakage, Jabra has implemented a 360 degree rotating mic boom. Spin the boom to any position with no fear of overextending and adjust the mic to the most convenient angle. PEAKSTOP DECIBEL PROTECTION - Jabra's innovative PeakStop technology protects your hearing from signal peaks that transmit harmful decibel levels to your ears. This keeps the headset level at a consistently safe range thereby safeguarding your hearing. NOISE CANCELLING MIC - Reducing unwanted background noise, the 2300's noise cancelling microphone reduces interference when working in loud office environments. Sound cuts through crystal clear and keeps your business conducting in a professional manner. KEVLAR REINFORCED CABLE - Able to take the daily punishment a busy office environment dishes, Kevlar reinforced cable will prevent breakage and stand the test of time. All but bulletproof, the durable wiring prevents the need for continual replacements. INCLUDED - QD headset, Warranty card, Warning card, Quick start guide, Poly zip bag