Bluetooth Transmitter & Receiver- In the Transmitter(TX) mode, this Bluetooth audio adapter can convert TV/PC/CD player/iPod/MP3/MP4 into a Bluetooth transmitter. In RX mode, Bluetooth receiver receives audio from a smartphone or other Bluetooth source device and then transmits the audio to non-Bluetooth wired speakers, car/home stereos, headphones via a 3.5mm AUX cable.Low Latency &Intelligent Noise Reduction Tech- Our Bluetooth audio receiver premium low latency chip and Bluetooth 5.0 tech, adopts the latest CVC8.0 Noise Cancellation and Digital Signal Processor (DSP) technologies, which can eliminate echo and block out intrusive background noise (such as wind, traffic, or crowds), providing you with crystal-clear calling sounds. Warm tip: The transmission distance should be within 32ft.Up to 10 Hours of Battery Life- The working time of this aux Bluetooth adapter is up to 10 hours when making calls or playing music. In addition, this Bluetooth music adapter no driver required, plug & play, one-button switching of receiving/transmitting. Just remember to fully charge the transmitter before each use.Practical LCD Screen- Portable bluetooth transmitter adopt unique visual screen design,will show whether the product is in TX mode or RX mode,it is convenient to choose the Bluetooth devices to connect(up to 8 nearby devices). And this visible Bluetooth transmitter 3.5mm audio adapter can also show the paring mode/status, battery, volume, etc.you will not connect by mistake.