The technical details behind this microphone
The BOYA BY-M1DM is a Dual Lavalier Universal Microphone, with a single 1/8″ stereo connector, it can be used with smartphones, DSLR cameras, camcorders, audio recorders, PC, and other recording devices. It consists of two of the well-received omnidirectional lavalier microphones and 4m (13′) length cable, it’s perfect for interviews, presentations, podcasts, webcasts, or any situation where more than one subject needs to be recorded. 
Key Features
Dual Lavalier Universal Microphone
for Smartphones, DSLR cameras, camcorders, audio recorders, & PC.
Top three Reasons we think you will love this microphone
Great Features

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