AUX BLUETOOTH RECEIVER: Upgrade your vehicle to have advanced new Bluetooth 5.1 capabilities and play music/audiobooks through your car stereo from your phone by connecting the built-in 3.5mm AUX cord. HANDS-FREE CALLING: Simplify using your phone to make calls while driving with an easy quick press button that answers/hang up, redial, and rejects calls. Automatically switch to hands-free mode when receiving a phone call and enjoy zero sound interference via the enlarged built-in microphone and CVC/DSP noise cancellation. VOICE ASSISTANT: Keep your hands on the wheel by managing phone calls, text, navigation, and music by speaking commands using Siri / Google Assistant applications. FAST CHARGING: Rapidly charge your phone via the dual USB QC3.0 / 2.4A ports on the car cigarette charger with the latest quick charging technology. LIVE CUSTOMER SUPPORT