Technical Pro's groundbreaking new approach to industrial design incorporates advanced technology and striking good looks with rugged construction and a long list of features, providing years of audio enjoyment. Professional Headphones. Dynamic Super Bass. Contoured body for superior comfort. Lightweight design and air tight construction. Advanced design for serious music lovers. Professional super bass driver. Super Cushioned ear pads. Portable headphone case designed for safe storage. Enhanced noise reducing design. Driver Unit: 50mm. Impedance: 32ohm. Sensitivity: 105dB 3dB. Frequency Response: 20Hz-20KHz. Magnet: NdFed. Plug: 3.5mm Stereo plug. Maximum power input: 100mw. Adaptors included: 1/4 (6.35mm)gold plated adaptor and 1/4 (6.35mm)90 Degree adaptor. Cord length: 12'.