I do some tv news videos and documentaries so i needed a wireless lavalier microphone to have a good sound in the interviews. As I had a low budget I decided to try these, and they proved to be much better than I was expecting.The K&F M-8 comes in a well distributed box that is easy to assemble and start using. Good material quality and attention to detail such as an extra microphone sponge and a small microphone to attach directly to transmitter. The lavalier microphone cable length is ideal, not too long. Lightweight, easy-to-use especially on top of the camera or any other hot shoe mount bracket. Very good to use with gimbal due to being light.The lcd of the units is good and displays the battery level, channel (have 6 different) and the volume level in receiver unit.So far, in the situations I used, they always worked well, with low noise, good voice pickup and no interference. If you need to capture sound from another device or external microphone there is a simple button on the transmitter to switch from microphone to AUX. I recommend buying a Black Fur Microphone Windscreen for windy situations abroad and placing the lavalier micro as close as possible to the interviewee's mouth. In case you need to connect the receiver to a camera with only XLR input, just buy a mini jack for xlr male cable.Very easy to carry in the backpack, quick and easy to assemble. For the price, these microphones are more than recommended, and essential for any filmmaker.