SONRU Bluetooth Receiver - Bluetooth 4.1 3.5mm battery

Earldom ET-M40 Wireless Bluetooth Audio Receiver 5.0

Comsoon Bluetooth Receiver - Bluetooth 5.0 3.5mm AUX lithium-ion battery

FiiO RETRO NANO - Type-C 3.7V lithium battery

SYOSI Bluetooth 5.0 Adapter 5.0

SYOSI Bluetooth 5.1 Receiver for Home Stereo 5.1

KASTWAVE Bluetooth Transmitter & Receiver - Bluetooth 5.2 3.5mm AUX Built-in 250mAh Li-Polymer battery

Captaintech Bluetooth Aux Adapter - Bluetooth 5.0 3.5mm USB charging

NIBEMINENT Mini Bluetooth Audio Receiver

SYOSI Bluetooth 5.0 Transmitter Receiver 3 in 1 Adapter 5.0

Excefore Bluetooth 5.3 Transmitter and Receiver 5.3