Bluetooth 5.1 audio receiver, NFC a touch to connect. Built-in Bluetooth induction chip, cell phones near the second connection, support for cell phones with NFC function tablet, to avoid tedious manual connection.
eBay
100W+100W Bluetooth-Compatible Wireless Digital Audio Power Amplifier Class D 20W~200W HiFi Stereo
Aliexpress UK
NFC Wireless Bluetooth5.0 Audio Transmitter Receiver HiFi Music Adapter RCA AUX. Wireless Bluetooth Receiver Audio Stereo 3.5mm Jack AUX NFC to 2 RCA Adapter UK . Wireless Bluetooth 5.0 Audio Transmitter Receiver NFC HiFi Music Adapter AUXRCA.
eBay
HiFi Digital Amplifier 800Wx2 Channel USB Wireless Bluetooth AV Audio Power Amp Anti Whistling Sound
Aliexpress UK
Bluetooth Receiving Mode. Music Playback. Products only receive and TF card function, no transmitter function. Bluetooth version: 5.1. Turn on the power, turn the switch to BT position. 3.5mm audio port of the receiver and connect the other end to the output device, you can.
eBay
Podofo Car Audio DSP Amplifier Wireless Bluetooth music USB Playback Four-channel Design For Car
Aliexpress UK
Power Dynamics home audio system including two kitchen ceiling speakers, a pair of outdoor speakers, a wall-mounted amp and a speaker switch. The speaker system can be used to span your living room or kitchen and your garden. This system is perfect for families and couples at home, since the amp can play audio from a range of devices. Two NCSS5 ceiling speakers are provided for indoor use. These are slender and white to blend into your ceiling. Their coaxial design, with separate woofer and tweeter drivers, produces a clear, full-range sound that is great for use as living room or kitchen ceiling speakers.
eBay
Car Amplifier Monoblock Class D Subwoofer Car Audio Amplifier Car Speaker 4500W High Power Korean
Aliexpress UK
Model: MN170BT. maximum stereo output power of the left and right channels each 30 W, Bluetooth version 4.2. Support APP support and support line input. Output Power: 30Wx2.
eBay
300W High - Performance HIFI Class D Digital Audio Power Amplifier with TPA3255 Chip Wireless
Aliexpress UK
Super Mini Bluetooth Amplifier with up to 50W per channel. Lovely little amp with lots of uses! If your after a very small bluetooth amplifier then this is the one for you. Power it up (socket and wire provided) to a 12v to 24v source.
eBay
Nobsound A100 TPA3255 Digital Power Amplifier 3.5mm AUX Mono/Stereo RCA Bass A100 Audio Amp 300W
Aliexpress UK
This compact Bluetooth audio amplifier allows the connection of Bluetooth devices to low impedance speakers via the built-in power amplifier. The unit can power up to 2 x 15W speakers at 4 or 8 Ohms and is supplied with two 3m speaker cables and 1 x 4 way phoenix connector.
eBay
Bluetooth 5.0 MP3 Decoder Board 2*80W 160W Amplifier Audio Player 12V DIY MP3 Player Car FM Radio
Aliexpress UK
Fiio BTR11 supports the LDAC Bluetooth audio format, providing HiFi-level wireless Bluetooth sound quality, and also supports Bluetooth 5.3! Not only can it turn wired headphones into Bluetooth wireless headphones instantly, but it can also upgrade non-Bluetooth speakers or those that don’t support LDAC to Bluetooth capability or enhance them to support higher-quality Bluetooth formats!
eBay
BRZHIFI Audio Class A Hood 1969 Audio Power Amplifier 15W+15W Hi Fi Amplifier HOOD 1969
Aliexpress UK