Usage Tips:KN330 Bluetooth 5.0 Audio Transmitter & Receiver 2-in-1 Wireless Adapter for TV, PC, Car, and SpeakersEnjoy the freedom of wireless audio with the KN330 Bluetooth 5.0 Transmitter & Receiver. This compact, portable device supports both TX (transmit) and RX (receive) modes, making it the perfect solution for streaming music from TVs, PCs, and other wired devices to Bluetooth headphones or speakers or turning your home/car speaker into a Bluetooth-enabled device.Whether you're connecting a TV to wireless headphones or streaming music from your phone to your car stereo, this versatile adapter delivers fast transmission, stable connection, and stereo sound.Key Features: Bluetooth 5.0 Technology Fast, stable, and energy-efficient wireless connection 2-in-1 Functionality Switch between transmitter (TX) and receiver (RX) modes Wide Compatibility Works with TVs, computers, smartphones, speakers, car audio systems, and more Plug & Play No drivers needed for PC use; simple setup Compact & Lightweight Easy to carry and perfect for travelSpecifications:Model: KN330Bluetooth Version: BT 5.0Supported Protocols: A2DP, AVRCP (Receiver mode only)Operating Range: Up to 10m / 33ft (open space)TX Mode: Transmitter mode (Red LED)RX Mode: Receiver mode (Blue LED)Power Supply: DC 5V via USB (no internal battery)Dimensions: 45mm x 20mm x 11mmPairing Name: KN330How to Use:For Computers (TX Mode):Plug into USB port (5V), no drivers neededRed LED indicates transmitting modeConnects automatically to Bluetooth headphones/speakersFor TVs & Non-Bluetooth Devices (TX Mode):Connect using provided 3.5mm audio cablePlug into USB for powerAutomatically pairs with Bluetooth audio devicesFor Speakers & Car Stereos (RX Mode):Switch to RX mode (Blue LED)Connect to speakers AUX inputStream music wirelessly from your phone or tabletPackage Includes:1 x KN330 Bluetooth Adapter1 x 3.5mm Audio Cable1 x User ManualIdeal For:Turning wired speakers or headphones into Bluetooth devicesStreaming audio from TVs or computers to wireless headphonesAdding Bluetooth functionality to car audio systems