Stereo headphones A4Tech HS-30, Brand - A4 Tech, Model - A4 Tech HS-30, Type - Regular headphones, Connectivity - Wired, Frequency response (Hz - kHz) - 20 Hz - 20 KHz, Sensitivity (dB) - 102 dB , Impedance (ohm) - 32 ohms, Microphone - Yes, Plug Type - 3.5mm (Dual Port), Cable Length (ft) - 6.56ft, Features - Omnidirectional, High Power, Stereo Sound, Adjustable Headband, 3.5mm plug, Excellent sound quality, Omnidirectional noise canceling microphone, Premium ear cushions, Adjustable headband, Other - Controller: volume knob on the headset, Warranty - 1 year, Country of origin - Taiwan, Made in / Assembly - China