3.5mm USB Headset Computer Headphones Noise Reduction Microphone for PC Laptop Mobile Phone

Features:The arm can rotate the brand LOGO model 360 degrees.ABS material of high quality. High-quality ABS material is strong and durable.Soft leather earmuffs with protein holsters. Comfortable soft earmuffs protect ears.The headphone headphone can be telescopic up and down to adapt to the size of the head.The earphone rotating arm can be rotated 330 degrees to facilitate wearing around.Omnidirectional microphone soft microphone. The soft microphone tube can be bent at will. Omnidirectional noise reduction microphone.Anti-noise. The microphone is anti-noise, the microphone can effectively shield the background noise, and realize the sweet voice of the operator.Specifications:(1) Microphone1: Single point anti noise electret condenser microphone; signal-to-noise ratio is greater than 58db.2: Sensitivity - 40 ± 3dB (0dB = 1V / PA, at1khz).3: Impedance 2.2k ohms.4: The working voltage is 2.0V.(2) Receiver1: Broadband premium receiver.2: Impedance 150 ohms.3: Frequency range 100-6600hz.4: Distortion ≤ 5%.5: Sensitivity: 100± 3dB (1000, 12000, 1500, 2000Hz).(3)Wire Material:1: High quality swing resistant and low interference Pu earphone cable.2: The length of the plug varies from 1.4m to 2.6m (including the plug).3: The microphone tube is made of durable spring tube material.Ambient Temperature: - 10 ° C to + 40 ° CRelative Humidity: 10% ~ 95%Atmospheric Pressure: 86 ~ 106kpaEnvironmental Noise: ≤ 60dB (a)Type: A: Single Head 3.5mm / B: Single Head 3.5mm Tuning Mute / C: USB Tu