Designed to comply with the FCC frequency rules, the VocoPro UHF-18 microphone act as a plug-in device or function independently. The UHF Antenna of this VocoPro wireless microphone can be connected with the BNC plug for a secure reception. You can easily control the volume of this VocoPro microphone with the help of a power switch for the perfect sound suitable for your performance. The VocoPro UHF-18 microphone runs on two AA batteries that ensure a powerful output from it. The accessories included with this VocoPro wireless microphone are the power adapter and a ¼-inch patch cable. With amazing range coverage of 100 to 125 feet, this VocoPro microphone offers a reliable and secure perfromance.