Buy on Amazon.com : http://www.amazon.com/gp/product/B00HUEBG34?tag=catfoodrevi0a-20

Canon VIXIA mini X Camcorder External Microphone Vidpro XM-L Wired Lavalier microphone - 20'

Vidpro XM-L Wired Lavalier microphone - 20 Audio Cable
Transducer type Electret Condenser
Output Connection 35mm 18 inch 4-Pole Mini-plug - Polar Pattern Omni-directional
Frequency Range 65Hz - 18KHz - SignalNoise 74dB SPL
Sensitivity -30dB - 3dB 0dB 1VPa 1kHz