This is a dual signal VHF high band microphone system with an FM modulation mode. Because we use an FM modulation mode, you wont have to worry about electrical feedback, hums, or white noise distorting the sound. Weve built the headset microphones with exceptionally dominant signals so you dont have to fear your receiver accidentally picking up other broadcasts over your voice transmission. Wander up to 50 away and your signal stays strong! Youll love the headset microphones hands-free use allowing you to be as active on stage as you want. Dance, point, lift, and move as needed. Another benefit of our headset style microphones is perfect positioning of the mic capsule for best possible sound quality. Its far enough away to eliminate pops and sibilance without compromising recording ability. The form-fitting headset lets you focus all of your attention on your performance and stays comfortable even after hours of use and repeated shows. A 1/4 output on the microphone receiver lets you connect it to a variety of PA systems, mixing boards, and powered speakers. The dual signal receiver and headset microphones are ideal for presentations with multiple performers. If you need a hands-free wireless microphone for your next show, get yourself the WM241 Dual Signal VHF High Band Microphone System. Youll be happy you did. Features: Dual signal VHF high band microphone system Dual headset microphones included Maximum deviation range: 75kHz Output: 1/4'' Frequency Response: 100Hz-10kHz Signal to noise ratio: 80 dB Modulation mode: FM THD: 1% Audio dynamic range: 80dB Service area: 50 feet Temperature range: 0 to 45C Dimensions (L x W x H):8"x5"x1.5"