Amazon.com: TDA7492P Stereo Amplifier Board Wireless Bluetooth 4.0 Audio Receiver Module DC 8-25V Input Voltage 25W : Electronics
LN-BT02 Stereo Smart 4.0 Bluetooth Audio Receiver Module - DIYElectronics
Bluetooth Receiver Module 4.0 Audio – MakerFocus
VUBT2 Universal Waterproof Bluetooth 4.0 Audio Receiver for Cars / Mot — NVX
SCOSCHE BTR3 BTFREQ™ Clip Universal Portable Bluetooth 4.0 Wireless Audio Streaming and Hands-free Calling Receiver for use with Non-Bluetooth Earbuds, Headphones, Car and Home Stereos – Black - Walmart.com
USB Bluetooth BLE 4.0 Audio Receiver for DIY and Car Audio | ThinkRobotics.in – ThinkRobotics.com
G-mark Ptm4 Mini 4 Channel Portable Bluetooth Audio Mixer Sound Board Dj Console With Usb Interface And High Headroom For Dj Events, Karaoke, And More : Target