... . Power Output: 2 * 10 W Channel: Dual-channel (stereo) FM radio frequency :87.5-108 .0 MHZ Performance indicators ... Supply: DC12VPower: 500MAPower Output: 2 * 10 WChannel: Dual-channel (stereo)FM radio frequency :87.5-108 .0 MHZSupport SD Card ... FM wide-band radio, radio clearuse of high-fidelity, stereo circuit designstylish, waterproof, anti-seismicdigital circuit design, high efficiency ...