This product uses FM full-frequency wireless transmission technology, which can directly read the audio files in the Bluetooth/TF card/U disk of the mobile phone. Support Bluetooth audio playback and Bluetooth hands-free calling. Usb car charger function in one multi-function car MP3. *USB2.1A charger, Bluetooth version 3.0 *Support Bluetooth / TF card / U disk playback, support Bluetooth hands-free calling *The screen can display the frequency, * Support power-off memory function * Support charging while listening to songs How to use car MP3: 1. Turn on the radio on the car and adjust to an idle frequency (ie no broadcast frequency) 2. Insert the product into the car lighter socket and set the product frequency to match the frequency of the radio just. 3. Insert the memory card or USB flash drive of the downloaded song into the unit, or connect the mobile phone to Bluetooth. 4. This machine can automatically play the memory card or U disk or the music in the phone.  This product uses FM full-frequency wireless transmission technology, which can directly read the audio files in the Bluetooth/TF card/U disk of the mobile phone. Support Bluetooth audio playback and Bluetooth hands-free calling. Usb car charger function in one multi-function car MP3. *USB2.1A charger, Bluetooth version 3.0 *Support Bluetooth / TF card / U disk playback, support Bluetooth hands-free calling *The screen can display the frequency, * Support power-off memory function * Support charging while listening to songs How to use car MP3: 1. Turn on the radio on the car and adjust to an idle frequency (ie no broadcast frequency) 2. Insert the product into the car lighter socket and set the product frequency to match the frequency of the radio just. 3. Insert the memory card or USB flash drive of the downloaded song into the unit, or connect the mobile phone to Bluetooth. 4. This machine can automatically play the memory card or U disk or the music in the phone. This product uses FM full-frequency wireless transmission technology, which can directly read the audio files in the Bluetooth/TF card/U disk of the mobile phone. Support Bluetooth audio playback and Bluetooth hands-free calling. Usb car charger function in one multi-function car MP3. *USB2.1A charger, Bluetooth version 3.0 *Support Bluetooth / TF card / U disk playback, support Bluetooth hands-free calling *The screen can display the frequency, * Support power-off memory function * Support charging while listening to songs How to use car MP3: 1. Turn on the radio on the car and adjust to an idle frequency (ie no broadcast frequency) 2. Insert the product into the car lighter socket and set the product frequency to match the frequency of the radio just. 3. Insert the memory card or USB flash drive of the downloaded song into the unit, or connect the mobile phone to Bluetooth. 4. This machine can automatically play the memory card or U disk or the music in the phone. 

This product uses FM full-frequency wireless transmission technology, which can directly read the audio files in the Bluetooth/TF card/U disk of the mobile phone. Support Bluetooth audio playback and Bluetooth hands-free calling. Usb car charger function in one multi-function car MP3. *USB2.1A charger, Bluetooth version 3.0 *Support Bluetooth / TF card / U disk playback, support Bluetooth hands-free calling *The screen can display the frequency, * Support power-off memory function * Support charging while listening to songs How to use car MP3: 1. Turn on the radio on the car and adjust to an idle frequency (ie no broadcast frequency) 2. Insert the product into the car lighter socket and set the product frequency to match the frequency of the radio just. 3. Insert the memory card or USB flash drive of the downloaded song into the unit, or connect the mobile phone to Bluetooth. 4. This machine can automatically play the memory card or U disk or the music in the phone.  This product uses FM full-frequency wireless transmission technology, which can directly read the audio files in the Bluetooth/TF card/U disk of the mobile phone. Support Bluetooth audio playback and Bluetooth hands-free calling. Usb car charger function in one multi-function car MP3. *USB2.1A charger, Bluetooth version 3.0 *Support Bluetooth / TF card / U disk playback, support Bluetooth hands-free calling *The screen can display the frequency, * Support power-off memory function * Support charging while listening to songs How to use car MP3: 1. Turn on the radio on the car and adjust to an idle frequency (ie no broadcast frequency) 2. Insert the product into the car lighter socket and set the product frequency to match the frequency of the radio just. 3. Insert the memory card or USB flash drive of the downloaded song into the unit, or connect the mobile phone to Bluetooth. 4. This machine can automatically play the memory card or U disk or the music in the phone. This product uses FM full-frequency wireless transmission technology, which can directly read the audio files in the Bluetooth/TF card/U disk of the mobile phone. Support Bluetooth audio playback and Bluetooth hands-free calling. Usb car charger function in one multi-function car MP3. *USB2.1A charger, Bluetooth version 3.0 *Support Bluetooth / TF card / U disk playback, support Bluetooth hands-free calling *The screen can display the frequency, * Support power-off memory function * Support charging while listening to songs How to use car MP3: 1. Turn on the radio on the car and adjust to an idle frequency (ie no broadcast frequency) 2. Insert the product into the car lighter socket and set the product frequency to match the frequency of the radio just. 3. Insert the memory card or USB flash drive of the downloaded song into the unit, or connect the mobile phone to Bluetooth. 4. This machine can automatically play the memory card or U disk or the music in the phone.