... design. 4,Radio frequency(FM 87.5~108.0MHZ). 5,A storage at time frequency power launch ... ipod,smartphones,mp3 players ect. 9,support handset and handsfree call, perfect for car owners. Product features ... The unique high-grade visual design.*use DIGITAL and PLL phase lock technology,The launch of stable ... Audio distortion degree:*clutter wave and harmonic wave:<-35db folding wireless mini FM Transmitter