Jabra Evolve2 85 UC USB-C Stereo Bluetooth Headset - Black - Bluetooth 5.0 - LED Features - Speaker Size: 40mm Ø - Sensitivity: 117d - B - Max Input Power: 50m - W - Freq Range: 20Hz-20k - Hz - Speaker Bandwidth: 20Hz-20k - Hz Music Mode, 100Hz-8k - Hz Speak Mode - Mic Type/Sensitivity: 4 Analog(-35 d - Bv/Pa)/6 Digital(-26d - BFS/Pa) MEMS - Freq Range: 5-20kHz/100Hz-8kHz - Time: 30hrs Talk, 37hrs Music, 140min Charge - Power Consumption: 5V/500m