Includes 30 AMP power supply The Retevis MA1 Dual Band Ham Radio Cross-Band Repeater Mobile Transceiver with PS is a versatile and reliable device designed for ham radio enthusiasts. With its dual bands of 2m and 70cm frequencies, this transceiver offers a wide range of communication options. It features a cross-band relay function, superheterodyne receiver, and LCD screen for easy monitoring. The detachable front panel allows for easy customization, while the clear sound quality ensures effective communication. This FCC certified device is suitable for use in camper vans and RVs, making it convenient for on-the-go communication.