Check the listing for details. 3.5mm Electret Condenser Omni-Directional Video Microphone - CoMica. Condition: New. Listed at 8.99 USD. Model: SIG.LAV V03 Omni-directional Microphone 20.3′ Length Real-time monitoring Super Anti-interference compatible with smartphones, DSLRs, camcorders, well compatible with GoPro cameras. Powered by CR2032 battery (not included) What's Included: 1 x Lavalier Microphone 1 x Winding Plate 1 x Wind Muff 1 x Carrying Bag 1 x User Manual Shipping Weight (lbs): 1 Shipping Dimensions (in): 8 x 6 x 3 Audio Output: Main Output: 3.5mm output plug | Monitor: 3.5mm monitor jack Battery: CR2032 3V/240mAh Build Material: Aluminum Frequency Response: 60Hz~18kHz Line Length: 20.3 ft Max. Input SPL: >100dB Polar Pattern: Omni-directional Sensitivity: -23±3dB Signal-To-Noise-Ratio: >60dB UPC Code: 6971120981170 Omni-directional Microphone The SIG.LAV V03 is an Omni-directional microphone that can pick up sound accurately when pointed in a certain direction. The microphone minimizes sound coming from unwanted sources. The length of the cable is 20.3 ft. Real-time monitoring With a 3.5mm monitor port, you can monitor the real-time recording with earphones. Super Anti-interference The metal body and clip minimize any unwanted interference. Universal Application The lapel mic is universal for smartphones, DSLRs, mirrorless cameras, camcorders, and GoPro cameras. Changeable Battery Powering The microphone is powered by a CR2032 battery (not included), which can be easily swapped with a new one. *Please note: The CR2032 battery is not included.