Brand Name: Jabra Model: Elite 75t Bluetooth version: 5.0 Wireless Range: Up to 33 feet/10 meters Microphone Concept: 4*MEMS Wind noise protection: yes, 4 microphone system, acoustic opening design Ambient noise reduction: yes, 4 microphone system Waterproof and Dustproof: Yes, IP57 Auto Power On: When the headset is removed from the charging case. Talk time: Up to 5 hours of battery life, up to 15 hours with charging case Charging time: 2 hours (using a dedicated USB wall charger (500mA)) Fast charging: 15 minutes, fast charging up to 1.5 hours