STABLE AND FLEXIBLE: Designed for professional dynamic microphones, the U3 has a recording-level sound transmission quality, provides stable and reliable wireless transmission, and a flexible and portable wireless solution that allows you to use your favorite microphones with different frequency characteristics. It is suitable for recording studios, theatrical, speaking and outdoor use. PLUG AND TALK: Mini plug and play design is easy to operate. U3 uses a balanced XLR interface , You just need to turn on the power. Reduce a lot of tedious settings, allowing you to enjoy the fun and convenience of wireless. SMALL AND POWERFUL: In such a compact space, built-in lithium-ion batteries provide you with five hours of usage and a stable wireless technology. A durable metal case can be adapted to various situations. 2.4GHz FREE FROM INTERFERENCE: What s the best way to avoid interference? Xvive U3 digital wireless systems broadcast in the 2.4GHz band, which successfully avoids interference caused by TV stations, public safety broadcasts, cell phone towers, and other high-powered sources. some environments are more difficult than others for 2.4 GHz wireless system performance. But still we would suggest you keep the system 3 meters away from Wifi router or other wireless system around; And close to your receiver.