MicroSD Port | Wireless Audio Adapter USB & Type C | Quick Charge 3.0 | Enhanced Bass Music Player | Hands-Free Calling | Siri&Google Assistant HIGH-QUALITY MUSIC – Transmit and play audio through your car stereo via new Bluetooth 5.0 using an FM Radio station or through the built-in 3.5mm AUX Jack. Stream your favorite music with enhanced bass booster options from your phone wirelessly or insert a micro SD card (up to 64 GB) HANDS-FREE CALLING – Featuring a 180° rotatable mic-probe that enhances voice pick up with zero latency along with Noise Cancellation options ensuring a crystal clear phone call without any interference. ULTRA FAST CHARGING – Quickly charge your phone via the USB QC3.0 or Type-C (20W) ports with the latest quick charging technology. VOICE ASSISTANT – Easily manage phone calls, text, navigate, and manage music by speaking commands using Siri / Google Assistant application. SUPERIOR DESIGN – Rotating Aluminum Knob design along with provided air vent bracket attachment for easy control through phone calls, music, and options. Also featuring a built-in LED Display with LED rhythmic light which adds a cool illumination to your car’s interior. LIVE CUSTOMER SUPPORT – Need help? Email or call our personal care team. Rexing stands behind all of our products with a ***18 Month Warranty ***