Walk and talk over a long range: Take calls up to 120 m away from your desk and hold high-quality conversations with wireless freedom World-class sound: Enjoy HD Voice/Wideband audio quality with ambient-noise reducing speakers and a noise-cancelling microphone that avoids air shocks Comfortable fit with lightweight, ergonomically designed frame, adjustable headband, and soft leatherette ear cushions - up to 8 hours of battery life to power your work day Jabra SafeTone technology for enhanced hearing protection technology: Automatically limits the average volume exposure during your working day to keep it within acoustic standards Scope of delivery: Jabra Pro 930 Duo MS DECT Wireless On-Ear Stereo Headset, base unit, UK charger, USB cable – Weight: 80 g – Colour: black