Upgraded Quick Charge Edition,Three-port Output Accelerated charging speed,Support SCP/FCP/PPS/QC3.0/QC4.0/MTK,PE+ USB 1 Output: 4.5V/5A,5V/4.5A,9V/3A,12V/2.4A Type-C Output:5V/3A,9V/3A,12/2.4A USB 2 Output: 5V/1.5A Support flash disk/TF card plug and play Two devices can be connected at the same time which will be played firstly when used firstly and when an incoming call comes the phone ,it will be automatically switched to. Bluetooth 5.0,360 Degree Stereo Surround Bluetooth 5.0 and original sound transmission, free from noise or current sound Compatible with MP3/WAV/FLAC/APE/WMA audio formats Safer Drving With Smart Voltage Detection When the car is switched on,the batery voltage can be automatically detected to ensure the safety. The FM transmitter is universal for all phones and 12-24V car models. One-touch Hands-free Call Built-in microphone,makes the voice clear and smooth. Bluetooth Connection Operation 1.Insert the product into the cigarette lighter socket to power it on 2.Adjust the car FM frequency to be consistent with that an empty channel frequency and save at the same frequency 3.Open the phone bluetooth to search forS-13 4.When the connection is completed,the product can play music Note It is a normal phenomenon that FM product will have some noise because of the interference of the local radio signal.Please Find an empty or non-interfered frequency and adjust the device to that frequency for minimized static noise.