Features 1. Upgrade Bluetooth 5.3: The Bluetooth fm transmitter adopts the latest Bluetooth 5.3 technology. Provide faster, more stable, and smarter connections with less sound quality loss, and uninterrupted call and music experience. Support automatic repair of the last device. 2. Dual microphones: clearer hands-free calls, with left and right microphones working together to capture your voice from all directions. Advanced CVC noise cancellation technology ensures that you enjoy clear wireless calls. Simply press the call button to enjoy easy hands-free calls. 3. three Siri and Google Voice Assistant: With the Bluetooth transmitter in the car, you can focus on making calls, sending messages, or getting directions by activating Siri or Google Assistant. Through this option, you can drive more safely. 4. metal: The outer ring of the car Bluetooth transmitter is made of aluminum alloy, with a delicate texture, durability, better heat dissipation, and safer than plastic. 5. Color LED lights with wide compatibility: The fm transmitter is equipped with color ambient lights, making driving more enjoyable. There is a button to turn off the light. This Bluetooth transmitter is largely compatible with 12V-24V cars (sedans SUV、 Trucks, etc. Note: Due to the placement of the cigarette lighter on these models, this transmitter is not suitable for golf/polo. Specification Transmission distance: 5M Frequency response: 20Hz~15Khz FM transmission frequency: 87.5~108.0 MHz Working voltage: 12V-24V USB output: qc3.0/PD Material: ABS+Aluminum alloy Color: Black Size: 0.5 x 6.8 x 5 cm Weight: 75 g Package Include: 1x car charger