SPECIFICATIONS Driver: 9mm dynamic driver Frequency Response: 20Hz-20kHz Impedance: 16 ohm Sensitivity: 106dB/mW TROUBLESHOOTING Earphones are marked with "L" and "R" and only produce one channel of audio each. If sound is reversed, try plugging in regular earbuds into each side of the Oculus, one at a time and then try again. This should reset the Oculus to proper Left/Right channel seperation. If you have questions, contact hello@spectrashell.com