Efficient dualdevice charging Charge multiple devices at speed with two USB Power Delivery ports. Designed for universal compatibility, the system ensures both smartphones and tablets receive power for faster, more efficient charging. Crystalclear calling for driver safety Stay connected on the road without distractions. The builtin noisecanceling microphone reduces background noise while the smart calling feature ensures clear communication. Automatic audio routing and responsive call controls allow you to manage calls hands, keeping focus on driving. Versatile connectivity for all media Compatible with standard car ports and fits seamlessly into cigarette lighter sockets. Offers triplefunction audio options including wireless streaming and USB input, delivering flexibility for music, podcasts, and other media formats. Compact, travelfriendly design Engineered for quick setup, this car FM transmitter features a plugandplay system with a userfriendly interface. Its compact size makes it ideal for road trips or daily commutes without cluttering the dashboard. Practical use scenarios 1. Daily commute – Charge your phone while streaming navigation and music without losing battery power. 2. Long road trips – Keep multiple devices powered while passengers enjoy music or podcasts through either wireless or USB connections. 3. Work travel – Maintain hands calls for business conversations while ensuring all gear stays charged en route. Materials and performance Durably built for consistent performance with quality components that support reliable charging and audio transmission. Designed for repeated use in varying driving conditions while maintaining stable connectivity and clear sound.