Addasound Crystal 2872 Duo Headphones with Microphone

The ADDASOUND Crystal 2872 headsets are specially designed for professional users in call centers and offices who want the best hands-free device while experiencing superior noise cancellation, crystal-clear voice transmission, all-day comfort, and high durability. ADDASOUND will be an ideal choice and ensure the best quality with a hands-free device. They are suitable for IP phones

The strong point of the ADDASOUND SR287 stereo headset is the advanced ambient noise cancellation technology built into it, which guarantees high sound quality and protects you from hearing damage during an 8-hour workday.

For your convenience, you have the ability to rotate the microphone 360 degrees, swivel the speakers, and adjust the headband. The SR2872 model features leatherette ear cushions. ADDASOUND headsets have undergone over 25 rigorous and intensive tests before being approved for release on the market

Microphone type: Uni-directional
Connectivity: Quick Disconnect – ability to connect to a PC or various phones with the appropriate connection cables or USB adapters
Frequency response 150 -10000Hz
Sensitivity (f = 1kHz, SPL = 1Pa, 0dB = 1V/Pa) -42dB
Distortion (%THD+N) <1%
Current consumption at 1.5V (μA) <450
Operating voltage (volts) 1,0 –10
Microphone Dimensions Φ4 mm
Impedance 680Ω
Frequency response 150 -6800Hz
Sensitivity@-1 KHz Sensitivity (dBPa/V) 102dB SPL@1KHz
Input impedance 150 Ω
Speaker size 28 mm
Microphone rotation 300°
Speaker rotation (Horizontal/Vertical) 180 °/0 °
Wideband audio - Middle band
Noise canceling microphone: Noise canceling microphone
Cable length: 70 cm
Leatherette ear cushions
Weight: 82 g