* Electronic Noise Reduction Effect > 12d B Built in ANC reverse noise reduction circuit can effectively reduce up to 85% of background noise, suitable for a long flight or areas of high background noise. * Foldable Headphones comfortable design, also foldable, smaller, lighter & portable thereby is the ideal traveling companion. * Low Voltage Design It can be used normally when battery voltage is at 1.1 V * Can be used with many mainstream entertainment devices It can be used with MP3, CD, DVD Players. It may also be used as a silencer headphone without connecting wires (no audio input) at the same time it may be used as a general high-quality headphone without battery (passive mode). * Multiple Access Configuration Matching 6.3mm stereo adapter plug as well as the F-type air & adapter plug Frequency Range: 20-20, 000 Hz Active Noise Attenuation: 100-1, 000 Hz > 10 d B Maximum Input: 30mw Sensitivity: 98d B Impedance: 32 ohm Jack
- 3.5mm-6.3mm (1/4") Plug + Airplane Jack Battery Power Supply
- 2 x 1.5AAA