The audio cable is inserted into TRANSMITTER for transmission mode, and the indicator light is blue. 1x 5.0 Bluetooth receiver transmitter. Transmitter mode: blue LED light is on. Transmission mode (suitable for sending computer/TV/radio/MP3 audio to Bluetooth headset/stereo).
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Portable Bluetooth Speaker Wireless Mini Speaker Amplifier Stereo Subwoofer Speaker TF USB Built-in Mic Dual Bass
Aliexpress UK
Support NFC near-field pairing, and NFC automatically turns on or off Bluetooth wireless connection during pairing. After connecting to the product, you will see the blue indicator in the "indicator window" flashing and hear the prompt tone indicating the NFC desktop.
eBay
100% Original Lenovo K30 Music Surround Bass Box Mic Portable Hifi Bluetooth Wireless Speaker Waterproof USB Outdoor Loudspeaker
Aliexpress UK
BT Version: 5.3. This Blue Tooth USB Adapter uses CVC and blue tooth 5.3 technology, which improves the sound quality and reliability of your wireless connection. They ensure noise and interference-free audio transmission for your devices.
eBay
Computer Speakers PC Sound Box USB Powered Soundbar Wired and Wireless Bluetooth Speaker For Pc Gaming Surround Audio System
Aliexpress UK
BT Version: 5.3. This Blue Tooth USB Adapter uses CVC and blue tooth 5.3 technology, which improves the sound quality and reliability of your wireless connection. They ensure noise and interference-free audio transmission for your devices.
eBay
ZEALOT-S46 Powerful Bluetooth Wireless Speakers Audio Center Portable Mini Subwoofer Colorful Sound System FM Radio USB
Aliexpress UK
Connect the product to a device such as a TV with a 3.5 audio cable/RCA audio cable. This portable, lightweight wireless audio transmitter & receiver is an ideal wireless audio solution for a wide range of situations and uses.
eBay
Portable Wireless Bluetooth-compatible Speaker Bass Column Outdoor USB Speakers With FM Radio AUX TF MP3 For Phone
Aliexpress UK
Wireless Bluetooth 5.1 Receiver Dongle Car AUX 3.5mm Adapter Cable. USB Bluetooth 5.3 Adapter Dongle Receiver for Car Music Audio Aux Adapter. Bluetooth 5.0 Receiver Adapter 3.5mm Car AUX Audio Stereo USB Vehicle with Cable.
eBay
TG534 Bluetooth Speaker Portable Wireless Subwoofer Heavy Bass FM USB TF AUX Play Waterproof Outdoor Loudspeaker for Smartphone
Aliexpress UK
Supports NFC near-field pairing, with NFC automatically turning on or off Bluetooth wireless connection during pairing. Function introduction: Supports Bluetooth, USB flash drive, hands-free calling, NFC connection.
eBay
Mini Subwoofer Bluetooth Speaker Dual Bass Diaphragm Supre Sound Quality Support TF Card USB Aux TWS Portable Wireless Sound Box
Aliexpress UK
Switch between transmitter and receiver modes with the simple flick of a switch. Effortlessly connect using advanced Bluetooth technology and 3.5mm audio cable (included). TX mode will automatically search for other Bluetooth receiving devices (such as Bluetooth headset, Bluetooth speaker, Bluetooth receiver, etc.), The red light flashes twice a second during the pairing process, and the red light flashes once every three seconds after the pairing is successful.
eBay
Powerful Bluetooth Speakers Colorful LED Home TV Theater Sound Wireless Subwoofer 3D Stereo Surround Wooden Material USB Wired
Aliexpress UK