The Saramonic SR-M1 lavalier is a 3.5mm plug-in powered lavalier microphone with a 4.1 (1.25m) cable. Designed as replacement lavaliers for the Saramonic Blink 500 and Blink 500 Pro wireless systems. It also works perfectly with wireless transmitters, handheld recorders, as well as DSLR, mirrorless and video cameras. A must-have for handheld recorders The SR-M1 makes it easy to add a lavalier to your handheld recorder and there are so many ways you can use it and expand your recorders capabilities. Just plug it into the 3.5mm mic input on to your recorder and start recording. Drop the recorder in a pocket or place it in on a podium or table to capture speeches, interviews and events. Slide it into a grooms pocket at a wedding to capture the ceremony. There are so many uses that make the SR-M1 lavalier an invaluable tool for your handheld recorder. Ideal solution for wireless systems Replace a lost or damaged lavalier, or just have a back-up on hand for your wireless system at less than 1/4 of the cost of the original replacement lav. You can even add a lavalier to that another brands 2.4GHz micro wireless system that doesnt come with one, for less than half the price of their branded lav. Its a great way to Go. Simple lavalier solution for handheld video The SR-M1 also makes a great vlogging and handheld video commentary microphone. Just plug it into your DLSL, Mirrorless or Video camera, and you have an extremely cost-effective lavalier microphone that gives you just the right amount of cable length for handheld filming. Easy to pull out and plug in whenever inspiration strikes, or when you just want to capture the moment. Replacement for Blink 500 and Blink 500 Pro Wireless Systems The SR-M1 is the same lavalier microphone that is included with the Blink 500 and Blink 500 Pro wireless systems. Making it the prefect choice to replace lost or damaged lavaliers from those systems.