About this item: QC3. 0 charger+type-c pd 18w quick charge:the bluetooth fm transmitter support charging two devices simultaneously, quick charge 3. 0 port and type-c pd 18w ports compatible with: qc2. under the maximum output, the charger efficiency is more than 80 percent, so that your device can be fully charged in a short time. better-charging perf. Answer calls hands-free : high-performance microphone with noise suppression cvc technology, grants you crystal clear call. answering/redialing/dismissing or ending the call just simply click a button. seamlessly switches between incoming calls and music; drive more safely. moreover, the BT transmitter supports voice navigation of your phone. meanwhile, power off or power on, just slightly rotate the phone button. with the help of music sound effect, dance music, dj, rap, and light music can be enhanced via the music sound effect buttonb. Multi-safety protection : comes with built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection. the fm transmitter effectively prevents multiple unsafe problems. low noise and low ripple output, which can effectively reduce the loss of electronic devices within the charging device. better protect your car and smart devices. Wide compatibility :BT car fm transmitter can be paired as a hands-free kit with all BT enabled devices . Specifications: Color: silver black Package contains: 1pcs * FM transmitter