FM Transmitter,DLAND Wireless Bluetooth FM Transmitter FM Modulator Radio Car Mp3 Player Handsfree Car Kit with 2-Port USB Charging, Music Control and Hands-Free Calling Automatically detect the charging device and charging environment, match the optimal current, display output current value,more intelligent than others.Exquisite appearance. Can automatically play and transmit the MP3 files of USB driver ,Micro SD card directly, Supports dual USB output voltage, power supply for other devices, the maximum output 5V/2.5A. Automatic memory function of power failure frequency point. Excellent hi-fi stereo sound quality.High-performance built-in microphone with Echo cancellation and noise suppression (CVC) technology which can offer your clear talking and wonderful music.Bluetooth sound processing:A2DP Bluetooth version:2.1+EDR . Simply paired your phone with the Bluetooth FM Transmitter and its hands-free system can set free your hands during answer the calls and let you safely drive. Compatible Modes: Apple , Samsung , HTC , LG , Sony , Motorola , Nokia , ASUS , Microsoft & More Smartphones , Tablets & MP3 Players and other mobile devices.