this product is the use of the full range of fm wireless transmission technology, can directly read the phone bluetooth / tf card u disk, audio files. support for bluetooth and bluetooth audio hands-free calls. support for intelligence,,app function, without the loss of high quality audio decoding, car battery voltage and high health warning car charger in a multifunctional car mp3.,,* support bluetooth music / tf card, u disk drive, bluetooth hands free phone support,,* led screen, can display frequency, song number and status information,- support a change of file reading, reading song classification,a variety of audio options for power and memory medium,the structural design specification, piano paint appearance,* in accordance with the standards of the eu and north american wireless emc and fcc product safety directive is more safe and reliable.,elimination of noise noise cancellation circuit, integrated, so that the call more clearly,the parameters of the product:,high speed usb2.0 interface.,drive: 5 v 3.1a smart (ic), 5 v / 1,led screen display,support tf card, u disk capacity (32 / gb,food: dc12 - 24v,file types supported: mp3 / wma / epa / flac / wav,operating current: 50 - 100ma dc12v,320kbps: 64 - bit rate,87.5-108 mhz fm frequency range.,signal to noise ratio, 85db (fm, 65db),harmonic distortion: < 0.05% fm (< 0.1%),operating temperature: 0 to 60,transmission distance < 5 m,the package includes:,1 x car hands free mp3 player,1 x fashion