Easy to install: you can connect the FM transmitter to the cigarette lighter socket in your car and to your mobile phone via Bluetooth. Select a blank FM frequency (from 87.5 to 108 MHz) and tune the FM transmitter to the same frequency. It adds many valuable features to your car, such as fast charging, stereo music, hands-free calling and voice control. Enjoy top sound quality: The wireless Bluetooth adapter integrates A2DP and DSP technology for clear voice reproduction and Hi-Fi music quality. 18W FAST CHARGING AND PD QUICK CHARGER: With QC 3.0 and USB-C PD, the wireless FM transmitter charges up to 4x faster than traditional car chargers. It's the perfect car adapter and charger in one, so you can charge your phone and play music via Bluetooth at the same time. SECURE VOICE CONTROL AND CHARGING: For hands-free calls and the Siri voice assistant, the wireless FM transmitter uses noise cancellation for clear calls. Pressing the talk button three times will activate the Siri voice assistant so you can drive safely. You can also press the button twice to quickly redial the last number. The FM transmitter can be switched off with a single press of the button, but retains its charging function. You can charge safely thanks to overvoltage, overcurrent, short-circuit and overheat protection. Specification: Colour: Black + Metallic Grey Size: 39 x 36 x 92 cm Material: ABS Bluetooth 5.0 Auto reconnect Dual fast charging: QC3.0 (USB-A 18W), PD3.0 (USB-C 18W) Support A2DP, AVRCP, HFP, HSP Private reply Memory function Stereo FM transmitter with DSP Support Siri/Google voice assistant Dual LED display with real-time battery voltage The package includes: 1 x FM Transmitter Bluetooth Transmitter with Quick Charge