Jabra Evolve 75e MS ANC Bluetooth In Ear Headset With Built In Mic - Jabra Link 370 USB Adapter - Skype For Business Certified (SFB)Bluetooth 4.2: bluetooth low energy (BTLE) - 15mm dynamic speaker - Active noise cancellation (ANC) - Sweat and water resistance (IP54) - Vibration alert in headband - 13 hours talk time - 14 hours music time - 2 hours charge time - 12 Months Limited Warranty