Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 Channel Mini Hi-Res Class D Integrated Amp 50 Watt x2+100 Watt for Passive Speakers/Subwoofer & Powered Subwoofer

Fosi Audio MC101 Bluetooth Stereo Amplifier Home Audio Component Mini Amp with VU Meter 2 Channel HiFi Receiver for Passive Speakers with Bass Treble Tone Control Vintage All Aluminum Alloy Build

Fosi Audio BT30D Pro TPA3255 Hi-Fi Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 Channel Mini Class D Integrated Amp 165 Watt x2+350 Watt for Home Outdoor Desktop Bookshelf Speakers/Subwoofers

Auris Blume HD Long Range Bluetooth 5.0 Music Receiver Hi-Fi Audio Adapter with Audiophile DAC aptX HD for Streaming to Home Stereo, AV Receiver or Stereo Amplifier Black

Fosi Audio BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control