29 4.0 version bluetooth transmitter products are offered for sale by suppliers on Alibaba.com, of which car mp3 player accounts for 6%.
A wide variety of 4.0 version bluetooth transmitter options are available to you, You can also choose from plastic, abs 4.0 version bluetooth transmitter,as well as from hands-free 4.0 version bluetooth transmitter and whether 4.0 version bluetooth transmitter is aux port, usb port, or aux.