Description: 【Enhanced Double Microphone 】: This transmitter is with two enhanced microphones, providing an exceptional call experience. With Clear Voice Calling noise reduction and cancellation , you can enjoy clear conversations, supports smart voice navigation from your phone 【Features】: The car adapter with powerful deep bass and immersive stereo sound at the press of the "B" button. The Fi audio quality enhances your music with dynamic and pleasing sound 【 5.4 with Light Switch】: Harness the power of 5.4 for quick pairing and improved data transfer speeds. Its colorful light design makes buttons visible even in darkness, with a simple press to turn off the lights 【 Fast Charging】: transmitter with PD36W and QC18W charging capabilities offers a high speed efficient charging solution for your devices, ensuring they are powered up quickly 【Compact Design】: Made from ABS material, this device measures 47x51x82mm, making it compact yet functional for any vehicle setup Specification: Input:12V-24V Frequency: 87.5-108mhz Power:66W Size Chart: 4.7cmx5.1cmx8.2cm/1.85inchx2.01inchx3.23inch Package Includes: 1 Car Transmitter Note: Please allow slightly errors 1-2cm differences due to manual measurement.