Spark USB Bluetooth 5.4 Transmitter Receiver Portable USB Adaptor  (Black)

New Upgrade 2 Modes - In TX mode, the Bluetooth transmitter is plugged into non-Bluetooth devices such as TV/PC via 3.5mm jack and transmits audio to Bluetooth earphone/speaker. In RX mode, connect the device to a wired speaker/car stereo, you can receive the audio form phones via Bluetooth. Bring new life for you old home system. Insert a TF card and connect it to your vehicle or any aux jack and you'll have a audio experience. Mini Bluetooth 5.4 Audio Adapter - The Bluetooth 5.4 technology to provide longer transmission distance and stronger connection, audio won’t cut in/out easily. Up to 33 feet transmission range meets your daily use needs. You just need to connect it with Non-Bluetooth devices, then they can be upgraded to Bluetooth devices. Multifunctional Transmitter Receiver Make Home Entertaiment System Wireless - If you wanna transfer home wired device into bluetooth ones, the bluetooth audio adapter can meet your needs. 2-in-1 wireless transmitter receiver is equipped with 3.5mm aux, which Bluetooth-enable of audio devices at home. You can use it to pair phones to play music or movies through home theater, or play music to bluetooth headphones at night but not annoy neighbors. Safe Hands-free Calling - Built-in mic for answering calls, it equipped with noise cancellation technology, suppress environmental noise, pick up voices more accurately. One button to answer/hang up calls. This aux to bluetooth adapter also supports broadcasting voice notification from navigation. Provides you with the safety and convenience of hands-free calling while driving. USB Powered & Easy to Use - Plug and Play, simply plug it into the 3.5mm aux jack and power it through the USB port (such as adapter/car charger/laptop), you will never worry it will run out of power while listening to music. One-click sliding design, easy to switch the TX/RX mode to solve your various usage needs. At the same time, you can answer/end a call/play/pause with a single button, making it convenient and fast for you to use.