Model - Jabra Evolve 75, Type - Bluetooth Headset, Connectivity - Bluetooth, Plug Type - Bluetooth 4.2, Frequency Response (Hz - kHz) - 20Hz - 20kHz (Music mode), 150 Hz - 6.8 kHz (Microphone), Microphone - Yes, Weight (gm) - 177gm, Warranty - 2 Year, Others - Color: Black, Speaker size:  40mm , Voice/Mute: Yes, Talk time (up to/hours):  18, Music time (up to/hours): 17, Standby time (up to/days): 15, Charging time: Approximately 2 hours, Operating range (up to): 30m/100ft, Connection (mini jack, USB, etc.):  Bluetooth or USB. Allows dual connectivity for two Bluetooth devices simultaneously, Supported Bluetooth profiles:  A2DP (v1.2), Hands Free Profile (v1.6), Headset Profile (v1.2), AGHFP (v1.6)   Dimension: Headset: 176 x 206 x 51mm,  Charging stand: 109.5 x 143 x 98mm, Specialty - Audio Microphone type Medium-length boom arm with noise cancelling uni-directional ECM microphone, Active Noise Cancellation:  Yes ??? Hybrid 4 mic ensuring 17dB (perceived cancellation in an office environment), Passive Noise Cancellation:  Yes, Listen-in feature:  Don???t miss important announcements or questions from your colleagues, Press the left ear cup to hear the outside world without having to take off your headset. Certifications: Certified for Skype for Business, Cisco, Avaya and more, Intuitive audio control: Speaker volume up/down on headset, Busylight : Integrated red lights on both ear cups are activated automatically when on a call or manually activated by the user when busy, to act as a ???do not disturb??? signal, Security Pairing, Authentication and Encryption (Bluetooth standard), Country of Origin - Denmark, Made in/ Assemble - China