Amazing Screen Design - The Bluetooth name will be displayed on the display, The screen will show whether the product is in TX mode or RX mode, Bluetooth transmitter can freely choose the Bluetooth headset or speaker to connect.In the Receiver(RX) Mode - Turn the traditional car speaker or stereo into Bluetooth-enabled speakers. Works with device with 3.5 mm interface.In the Transmitter(TX) Mode - The Bluetooth transmitter function transmits audio wirelessly to Bluetooth headphones/speakers.Lossless Sound Quality - Adopts the latest CVC8.0 noise cancellation and digital signal processor (DSP) technologies can restore lossless sound quality with high resolution,which can bring you a CD-level music experience. Warm tip: The transmission distance should be within 32ft.