USB Bluetooth Receiver 3.5 Audio Transmitter Adapter For TV/PC Headphone Speaker This portable, lightweight wireless audio transmitter and receiver is the ideal wireless audio solution for every situation and application, and can be used with computers, mobile phones, televisions, home speakers, and car speakers. Use the latest Bluetooth 5.0 technology, fast transmission speed, high-quality stereo music, enjoy the convenience of Bluetooth technology for life. Features: This extremely portable, lightweight wireless audio transmitter receiver is an ideal wireless audio solution for a wide range of situations and uses Transmitter mode: wireless streams audio from your non-Bluetooth TV, home stereo system, or player to your Bluetooth headphones or speakers Receiver mode wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones It has got powerful wireless audio streaming capabilities. Slip this transmitter receiver into your backpack or laptop bag and take it on-the-go without the slightest effort Broad Compatibility: With the included 3.5mm cable, this Receiver Transmitter adapter can widely be used on your computer, laptop, home stereo system, headphone, smartphone, Mp3 player, player, etc. Specification: Model: KN330 Technologies: BT5.0, A2DP, AVRCP (receiver mode only) Operation Range: Up to 10m / 33ft (without any blocking objects) Pairing name(Receiver mode ):KN330 TX:Transmitter mode,red LED light is on RX:Receiver mode,blue LED light is on Dimensions: 45mm*20mm*11mm Mode switching: Use the TX/RX switch to switch modes.TX is the transmission mode(red LED).RX is the receiver mode(blue LED) There is no built-in battery, and it is powered by DC 5V usb interface Insert usb power, the red light is on in the transmitting mode, the red light flashes when pairing, and the red light is always on after the pairing succeeds. Insert usb to power on, the receiving mode is blue light, the blue light flashes when pairing, the blue light is always on after pairing is successful. Use for computer: When you use it on your computer. No need audio cable and no driver required, plug and play (only audio cant transmit data). How to use: Switch to the transmitting mode (TX), the red light flashes, and the Bluetooth speaker or Bluetooth headset is turned on at the same time, it will be automatically paired. After the pairing is successful, the red light will be on. Use for other devices: When used on other non-computer devices with audio output, such as a TV How to use: Plug one end of the audio cable into the audio output of the TV and the other end into the audio of the KN330. Plug the KN330 into the usb (DC 5V) and confirm that it is in TX mode (red light flash). The KN330 will automatically search for Bluetooth headset or Bluetooth speaker pairing. Use for home speakers/ car speakers, etc KN330 can help home speakers, wired headphones, car speakers, etc. without Bluetooth. Bluetooth connection with your phone. Package Includes 1x Bluetooth 5.0 Audio Transmitter/Receiver Adapter 1x 3.5mm Aux Cable 1x User Manual Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-45340 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please dont hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it