This wireless microphone set is perfect for various occasions such as lecture, church, karaoke, and wedding. It is compatible with audio interface, audio mixer, and karaoke machine. The set includes a receiver and two handheld microphones with hyper cardioid polar pattern and 120dB audio sensitivity. The microphones have a sleek white color and are made of wireless microphone material. The set requires 3 Lithium Polymer batteries which are included in the package. The microphones have a dual digital dynamic microphone with a signal to noise ratio of 70dB and are connected through USB Type-C. The package dimensions are 9.45 x 5.94 x 2.32 inches and the item weight is 1.26 pounds. Open box new inspected unused