Amazon.com: 1Mii Bluetooth 5.0 Audio Receiver, Wireless Audio Adapter for Home Stereo Music Streaming System with 3.5 mm RCA, Bass Mode, 12hrs Playtime(Upgraded) : Electronics
Rockville RPA40BT 1000w 4 Zone Home Stereo Amplifier+Wifi Streaming Receiver - Rockville Audio
Amazon.com: KEiiD Stereo Receiver, WiFi Bluetooth Wireless Streaming, Subwoofer Output for 2.1 Home audio System, Optical AUX Input for Bookshelf Passive Speaker System, App Control with Clock Alarm & Sleep Timer :
Wiim Pro Wifi Wireless Music Player Audio Streaming Stereo Receiver+Voice Remote
Klark Teknik AIR LINK DW 20R - 2.4 GHz Wireless Stereo Receiver for High-Performance Stereo Audio
Arylic® - Best Wireless Home Stereo Amplifier, Preamp, DIY Audio Kits.
Wireless Sound WiFi Stereo System Amplifier Receiver – TUNERSYS
Arylic S10 WiFi & Bluetooth 5.0 preamplifier/Audio Receiver, Wireless multiroom/multizone Home Stereo Music Receiver Circuit Module with AirplaySpotify Connect and Remote Control for DIY Speakers - Newegg.com
2.4GHz Hifi Digital Wireless Stereo Audio Transmitter Receiver 200M Wireless Music Transceiver Adapter For PC TV Audio Cable - AliExpress
WiiM Mini Wifi Stream Music Player Wireless Audio Stereo Receiver+Remote Bundle | eBay
Rockville BLUAMP 100 Home Stereo Bluetooth Amp w/Smart Wifi Streaming Receiver | Reverb