Fangrui Product Details 1. T48c Car Bluetooth 5.0 Fm Transmitter Kit Dual Usb With Type-c 5v 2.4a Car Charger 2. 8 Color Modes: Breathing Rainbow, Red, Blue, Green, Yellow, Cyan, Purple, White, The Outer Circle Light Switch Design Creates A New Atmosphere For The Car Interior Space. 3. Bass Boost At The Push Of A Button. 4. Built-in Microphone, Answer Reject Hang Up Remind All In One Button 5. Input: Dc 12v 24v, Output 5v 2.4a + 18w Type-c Output 5v 3a 9v 2a 12v 1.5a. 6. Support Bluetooth Music, Micro Sd Card U Disk Up To 32gb In Mp3 Wma Wav Format 7. Bluetooth V5.0, Automatic Connection, Bluetooth Range Up To 5 Meters 8. Fm Frequency: 87.5mhz-108.0mhz 9. Unique High Definition Digital Display, Shows The Voltage Of The Car When Connected. 10. Crystalline Sound Quality, Listen To Music, Navigation, Streaming And Phone Calls Clearly.