3 in 1 Transmitter Receiver: The USB Bluetooth 5.0 audio transmitter receiver can transmit audio from non-Bluetooth audio sources (TV, PC, MP3, CD player or book reader, etc.) to Bluetooth headsets and speakers.
eBay
MINI ZK-502M Bluetooth Amplifier Board 50W+50W Stereo Audio AMP AUX USB Volume Control For Home Theater Speakers
Aliexpress UK
Adapter to connect auxillery input devices to smartphones and tablets. Compatible with all devices including the latest iPhone 15, Samsung and Google devices (which require DAC chip). DAC (Digital Analogue Converter) built-in for wide compatibility and high audio quality.
eBay
HIFI 20W*2 50W*2 AP50L AP15H Stereo Bluetooth-compatible Digital Amplifier Board AUX USB-C Input 12V/24V Home Theater XY-AP15H
Aliexpress UK
2-in-1 Type-C to 3.5mm Headphone Aux Jack Adapter Splitter For Huawei P20 Pro. Type-C Aux Audio Adapter. USB-C Earphone Adapter. USB-C to 3.5mm Headphone Jack Splitter. Type-C to Aux Dongle for Android.
eBay
Bluetooth 5.4 Audio Transmitter Receiver FM USB 3.5MM AUX RCA Stereo HIFI Music LED Display Wireless Adapter With Mic
Aliexpress UK
(【DAC Chip Model】. Type-C to 3.5mm Aux Adapter. (2)Google: Pixel 6/6 Pro/5/4/3/2, Pixel 4/3/2 XL. But it is not supported to connect the microphone alone, such as those Lapel Microphones、Wireless Microphones、Lapel Microphones、Karaoke Microphones.).
eBay
XY-AP50L Mini Bluetooth 5.0 50W+50W Dual Channel Audio Power Digital Amplifier Board Stereo Amplifier 3.5MM AUX USB APP
Aliexpress UK
✅ 【 Universal Compatibility 】 Our Aux to USB C cable for car is compatible with all devices with 3.5 mm jack, including Samsung Galaxy, Huawei, Sony, Nokia, Moto, and more. Use our USB C to aux cable for car with your car stereo, headphones, Hi-Fi system, computer speaker, MP3 Player, Bluetooth speakers, and other audio devices for seamless audio transmission.
eBay
SOAIY S99 Video Bluetooth speaker Home Theater Sound Music System with AUX USB TF Alarm Clock Fm Radio LED Display 8000 mAh Box
Aliexpress UK
Upgrade your car audio experience with this3.5mm AUX Male to USB 2.0 Female OTG Converter Adapter. Designed to connect USB flash drives to your car’s AUX input, this compact and easy-to-use cable is perfect for playing music on the go.
eBay
Portable Wireless PA Speaker Dual 6.5" Subwoofer System Supports AUX USB FM LED Rechargeable Battery Speakers with Microphone
Aliexpress UK
Type C to Aux Adapter Cable combines premium ABS shell + TPE cable to protect the audio signal against interference during transmission, greatly upgrades the sound quality. Enjoy noise-free, lossless and clear audio with this USB C 3.5mm Headphone Adapter.
eBay
Bluetooth 5.0 2x50W HIFI Power Subwoofer Amplifier Board Stereo Digital Audio Power Amplifier AMP AUX USB T50L APP
Aliexpress UK
Experience High-Quality Stereo Sound with a 10m Range: The car Bluetooth Aux adapter is compatible with AAC/SBC codecs, featuring an integrated noise isolation module that effectively eliminates static noise, ensuring a pristine Bluetooth audio experience.
eBay
Bluetooth 5.4 Audio Receiver Transmitter AUX USB Audio adapter LED Dispaly TF card Playback For Car TV Speakers PC
Aliexpress UK