When it comes to the best sound quality, Pro 4S stereophone from Koss is a name to reckon. It is light in weight with low profile form factor. The headphone is comfortable for the extended use. The dual choice entry/input and optional pass-through mode add another dimension to the headphone. Pro4S is tuned for studio use. It has advanced sound isolation, and Koss SLX40 Element (40 mm).

Sound at its Best

Pro 4S from Koss is remarkable for its excellent sound quality. It enhances the listening experience even if you use it for a longer period of time. The sound isolation and 10 Hz – 25,000 Hz Frequency Response that the headphone boasts of makes it just perfect to enjoy music. It also has 99 dB SPL.

Eye Catchy Design

Pro 4S has very attractive design that is comfortable as well. Black color with gray border at the outer of ear cushion gives it unique and attractive look. Compact dimension of the headphone makes it easy to carry along. Its dimension is 9.25 in x 2.55in x 8.7in and comes with protective carrying case.

Excellent Connectivity

Koss Pro 4S is very efficient, when it comes to connectivity. You can connect with any audio devices and enjoy the music hassle free. The headphone has detachable, dual choice cable input, 3.5mm plug, coiled, 4.5' average use length.

Features:

• Low profile form factor
• Lightweight
• Comfortable for extended use
• Dual choice entry/input
• Optional pass-through mode
• Tuned for studio use
• Advanced sound isolation
• Koss SLX40 Element (40 mm)
• Protective Carrying Case
• 10 – 25,000 Hz Frequency Response
• 35 Ohm Impedance
• 99 dB SPL
• Detachable, dual choice cable input, 3.5mm plug, coiled, 4.5' average use length