Multi purpose lightweight behind the neck or over head headphones works with PC, Phone, Stereo System

Specially engineered for ergonomic comfort and durability. Behind the neck headband design provides added stability during activity. Reproduces harmonic and superbly transparent sound. Tangle-free single entry cord. Uses 3.5mm Stereo plug and includes 6.3mm phono size plug adapter. Driver units 34 mm cobalt magnet Impedance 32ohms +/-10% Frequency response 20hZ-20kHz Sensitivity 111dB +/- 3dB @ 1kHz Max power 100mW