Sony MDR-1A Headphone - Silver (International Version U.S. warranty may not apply)

Headphone unit * 1
Type: Sealed dynamic type
Driver unit: 40mm dome type
Sensitivity: 105dbB / mW
Magnet: Neodymium
Play frequency band: 3-100000Hz
Impedance: 24Ω (at 1kHz)
Maximum input * 2: 1500mW (IEC)
Cord Length: about 1.2m, silver-coated OFC line
Code Type: One soup
Input Plug: Gold-plated L-type stereo mini plug
Mass * 3: about 225g (not including cable)

Microphone part
Method: electret condenser
Directional characteristics: omnidirectional
Effective frequency band: 20Hz-20,000Hz
Open circuit voltage level (0dB = 1V / Pa): -40dB (0db = 1V / Pa)

accessories
Carrying pouch: Yes
Warranty: Yes
Connection cable: headphone cable (about 1.2m), microphone / remote control with headphone cable (about 1.2m) Instruction Manual: Yes

* 1 product with a receiver includes a receiver unit
* 2 IEC (International Electrotechnical Commission) is measured by standard.
* 3 code is not included