Main features:
support fm transmitter
with led display screen
support audio line input
support playing music by usb disk
support mp3 / wma music format
support answer / hang up / reject / redial your calls
echo cancellation and noise suppression technolony
aitumatic power-off function
usb output: 5v / 2.5a
apply to: digital cameras,iphone 4/4s/ipod/ipad 2/the new ipad,iphone 4/4s/ipod/ipad 2/the nwe ipad,iphone 5/5s,laptop computers,mp3,mp4,other ac and usb appliances,phones,samsung phones.