Upgraded Bluetooth 5.3 Car Transmitter - Uses the latest Bluetooth 5.3 technology to improve communication efficiency and anti-interference, delivering faster, more stable, and smarter connections with reduced sound quality loss. - Supports uninterrupted calls and music playback; after the initial successful pairing, automatic reconnection is enabled for convenience. Dual USB Charging Ports and Safe Charging - Built-in with 2 USB ports and 1 Type-C port, allowing you to charge two devices at the same time. - Includes a USB-C to USB adapter for compatibility with most USB devices. - Equipped with over-current protection, over-voltage protection, intelligent temperature control, and short circuit protection to ensure safe charging. Hands-Free Car Bluetooth Kit - Advanced CVC noise reduction technology provides fully duplex sound and minimizes ambient noise with echo cancellation. - Built-in microphone enables hands-free calls while driving. - Multi-function button (MFB) supports answering, hanging up, rejecting, and redialing calls. Blue Ambient Light and Vehicle Voltage Display - Blue ambient light glows when plugged into the cigarette lighter for easy operation in low-light conditions. - LED voltage display shows the vehicle’s voltage, helping you monitor car condition and enhance on-road safety. Compatibility and Use Scenarios - Compatible with most Bluetooth-enabled devices and car radio systems; designed for easy initial pairing and automatic reconnection thereafter. - Use scenarios: - Daily driving: hands-free calling and streaming music with stable performance and clear sound. - Road trips: charge two devices at once while using the car audio system for calls and music. - Night driving: blue ambient lighting and real-time voltage display aid operation and vehicle monitoring. Notes - This device is designed to be plugged into the car’s cigarette lighter outlet and to connect wirelessly to Bluetooth-enabled devices for audio transmission and hands-free communication.