... clear sound quality frequency display,fast charge perfect for car owners Product description: 1,Hifi sound quality and ... ,Micro USB 5V chargeable mode,can use 5v car adapter charger,or mobile phone charger or computer ... . 9,support handset and handsfree call, perfect for car owners. Product features: *The unique high-grade visual ... wave and harmonic wave:<-35db folding wireless mini FM Transmitter