The D2402 works as a digital dual-channel wireless MIC system which is the perfect solution for musicians and speakers who want to confidently and easily use wireless technology. Equipped with colorful TFIdisplay and simple fast adjustment menu, it enables your operations more smoothly and conveniently. Adopting advanced RF selection algorithm with 2.4GHz wireless technology while intelligently avoiding interference, lo achieve completely reliable performance and dropout free audio, and can coexist with Wi-Fi and Bluetooth.