Addasound Crystal 2732 Duo Headphones, Black , 5712562127327

The strength of the ADDASOUN SR2732 stereo headset is its advanced noise-canceling technology, which guarantees high sound quality and protects you from damage to your hearing during an 8-hour workday. Suitable for IP phones

For your convenience, you have the ability to rotate the microphone 360 ​​degrees, rotate the speakers 180 degrees and adjust the frame of the headphones. ADDASOUND headphones have passed over 25 strict and intensive tests before being approved for release to the market

Microphone type: Uni-directional
Connection: Quick Disconnect - ability to connect to a PC or different phones with the appropriate connecting 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) 106dB SPL@1KHz
Input impedance 90 Ω
Speaker size 27 mm
Microphone rotation 300°
Speaker rotation（Horizontal/Vertical） 180 °/0 °
Wideband audio
Noise-cancelling microphone
Cable length: 70 cm
Soft foam ear pads
Weight: 77 g