2-in-1 Bluetooth 5.0 Transmitter & Receiver Wireless 3.5mm Aux Audio Adapter

2-in-1 Bluetooth 4.2 Transmitter & Receiver - Wireless Audio Adapter for TV/Car/Speaker w/ 3.5mm Aux". Modes: Transmitter (TV/PC → BT) & Receiver (Phone → Car/Speaker). RX-TX-10 Bluetooth 4.2 Transmitter/Receiver - 2-in-1 Wireless Audio Adapter for TV, Car, PC - Low Latency, 10H Battery.

eBay