Alto Professional Bluetooth Total MKII - XLR Battery-powered

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

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

SONRU Bluetooth Receiver - Bluetooth 4.1 3.5mm battery

Y&D Bluetooth AUX Adapter - 5.3 3.5mm 22H Battery Life

Y&D Bluetooth Adapter - 5.0 3.5mm Jack Aux built-in li-ion rechargeable 140mAh battery

senkiila Bluetooth AUX Adapter - Bluetooth 5.0 3.5mm Built-in battery

UNITEK Bluetooth Transmitter Receiver - Bluetooth 5.0 Rechargeable battery

X-level Bluetooth 5.0 Transmitter Receiver - 3.5mm Built-in battery

APEKX Clip Bluetooth Audio Adapter - V4.1+EDR Battery Powered

FiiO BTR11 - Bluetooth 5.3 AUX Battery Powered