[Auto & Manual Tuning, Provide You with Stereo Music Enjoyment] The FM transmitter car kit has a dual-chip function and an upgrade to the Bluetooth 5.1 version. By lightly pressing the AUTO button, you can quickly search for the best FM frequency, which greatly improves the automatic scanning speed and avoids frequent switching. Connect the wireless FM smart transmitter to Bluetooth and enjoy a full-range stereo music conference![20W PD Type C & 18W QC3.0 USB Fast Charge, Multi-Device Charging to Avoid Low Battery] The car bluetooth adapter can charge two devices at the same time. The Type C & USB charging port provides more charging options, and the charging speed is increased by 5 times. Radio bluetooth transmitter is suitable for Android and ios systems, and can quickly activate for Siri / Google Assistant.[LED Ring Light & Display, Heat Dissipation Hole Design Protect Your Device] The bluetooth FM transmitter can quickly dissipate heat through the heat dissipation hole, keep it in good working condition, and avoid damage to the device caused by problems such as overheating and short circuit. LED ring lights and display screen make it easier for you to operate in dark environments. The car aux adapter is suitable for 12V/24V cigarette lighters and can be used in most car models.[Rotary Button & 3.5MM Auxiliary Output] The rotating ring of the wireless car radio adapter can manually adjust the FM channel/volume/turn off. The bluetooth 5.1 FM transmitter has a control damping effect to provide you with a more precise feedback Press. 3.5mm auxiliary output can be connected to car audio and car charger, with multiple connection methods, allowing you to enjoy three-dimensional audio book reading, music, news playback, etc.[Built-in Microphone, Easy to Set Up Hands-Free Calls] MP3 Player FM Transmitters has a stable connection and transmission, built-in microphone and noise reduction function, allowing you to experience smoother music and clearer calls. Anti-slip pad and anti-slip shrapnel, wide adaptability, avoid poor contact, and provide continuous power supply.Material:ABScolour:blackPackage Contents:1 * Car FM Transmitter1 * English manualOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.