Function:FM Transmitter wireless transmission to car FM stereo system. Automatically switch to hands free mode when answering a call. High definition without delay ensures clear communication and improves the sound quality of remote calls. The built in noise reduction chip can isolate most of the FM background noise and road noise during high speed driving, allowing users to have high quality calls and music. Design: Wireless Radio Adapter Car Kit support the top mainstream fast charging port Type-C PD3.0 (30W) fast charging, satisfying the timely charging of mobile phones, tape recorders, digital devices, etc. More Compatibility:Handsfree Call Car Charger can transfer calling/MP3 Music/Cellphone voices to the car radio. Clear Music Streaming:Distinctive car FM transmitter,with treble and bass setting diy your own music.You can enjoy the music and answer the call in hand free mode without refitting your car, which ensure the driving safety while enjoying music. Atmosphere Lamp Design:The design of Car MP3 Adapter atmosphere light not only has a gorgeous effect, but also enhances the feedback of human computer interaction. Ambient light with a sense of rhythm, which can respond to the rhythm of music. Specification: Blue USB-A port output: 5V/2.4A Type-C port output: PD3.0 (30W) charging protocol DC5V/3A, 9V/3A, 12V/2.5A Product power: 48W Output protection: output short-circuit protection; output over-current protection (3.6A); output over-temperature protection, IC will automatically power off and restart when it reaches (140C); Rated output power: 42W PD30W+USB-A12W Play music current: 70mA Size Chart: 8.15cmx5.87cmx12cm/3.21inchx2.31inchx4.72inch Package Includes: 1 Wireless Radio Adapter Note: Please allow slightly errors due to manual measurement and different monitors.