Roland

The CS-10EM provides combined in-ear monitoring and binaural recording, enhancing the convenience and enjoyment of field recording a great companion for the Roland R-05 and R-09HR field recorders. Simply wear the microphone-equipped earphones and capture what you hear, then listen back instantly. You can enjoy realistic sound as if you were there. You can also monitor while recording thanks to the CS-10EMs all-in-one design.

Compact, high-quality stereo condenser microphones built into earphones
Powered by the recorder (operating voltage is 2V to 10V; also works with other products)
All-in-one design lets you monitor while recording
Sophisticated enclosure design reduces feedback

Microphone
Element: Electret Condenser
Polar Pattern: Omnidirectional
Frequency Response: 20 Hz to 20,000 Hz
Open Circuit Sensitivity: -40 dB 1V/Pa
S/N: Greater than 60 dB
Impedance: 2.2 k
Current Consumption: 500 A
Power Requirements: 2 V to 10 V

Earphone
Type of Construction: Dynamic
Driver: 12.5mm
Sensitivity: 102 dB/1mW, 500 Hz
Maximum Input: 200 mA
Frequency Response: 15 Hz to 22,000 Hz
Impedance: 16
Weight: 4.5 g (without cord)
Cord: 1.5 m
Plug: Stereo mini (gold-plated) x 2