Wireless DualMode Audio Streaming The Car FM Transmitter supports dualmode audio transmission, enabling wireless music streaming and hands calling through wireless connectivity for safer driving. Audio Signal Relay for Broad Compatibility Equipped with advanced audio signal relay technology, this FM transmitter integrates with a wide range of car stereos to deliver seamless wireless music streaming and an immersive listening experience. Optimized Power Delivery with Double USB Fast Charging Designed to enhance travel, the transmitter provides efficient power delivery through its two USB ports, allowing drivers and passengers to keep devices charged during trips. Enhanced Sound Quality with NoiseCanceling Processing It delivers fidelity sound with noisecanceling processing, ensuring stable audio transmission and clear call quality for a reliable driving or music experience. Use scenarios Daily commute: enjoy wireless music and make hands calls while keeping distractions to a minimum. Long road trips: charge multiple devices simultaneously via the double USB ports while streaming music from your phone to the car stereo. Cars without builtin Bluetooth: connect wirelessly to the car stereo for convenient music playback and calling.