The Samson CH700 dynamic stereo  headphones  feature a closed back, circumaural design for maximum isolation, a fully adjustable padded headband and earcup set, and a neutral, extended frequency reproduction and dynamic range.
The CH700's are professional grade  headphones , but very inexpensive, and recommended as a good value for studio recording and mixing applications.
Features
- Circumaural closed back stereo headphones for maximum studio monitoring isolation
 - Large 40mm drivers with sensitive, ultra-thin Mylar diaphragms and Neodymium magnets for optimal frequency reproduction and wide dynamic range
 - High sensitivity, high output
 - Padded adjustable headband and earcups
 
Specifications
- Type: Circumaural Closed Back Dynamic Stereo Headphones
 - Frequency Range: 20 Hz - 22 kHz
 - Impedance: 64 Ohms
 - Sensitivity: 108 dB SPL/mW(1 kHz, +/-3 dB)
 - Maximum Input Power: Not Specified by Manufacturer
 - Connectors
 - 1 x Detachable 1/4" Stereo Phone Plug
 - 1 x 1/8" Permanent Stereo Mini Plug
 - Cable Length: 3' (1 m)
 - Weight: 1.15 lb (521 g)