Yes. WiiM devices support Bluetooth streaming and can function as both a Bluetooth receiver and a Bluetooth transmitter. 

Bluetooth Receiver (BT Input)

When used as a Bluetooth receiver, a WiiM device can pair with a Bluetooth source device (such as an iPhone, iPad, or Android phone) to receive audio input.

Once paired, Bluetooth audio can be played on a single WiiM device or across multiple WiiM devices grouped together in the WiiM Home app.

WiiM devices support only one Bluetooth connection at a time for audio input.

For instructions on how to pair WiiM devices with a BT input device, see these articles.

Bluetooth Transmitter (BT Output)

When used as a Bluetooth transmitter, a WiiM device can send audio output wirelessly to an external Bluetooth device, such as Bluetooth headphones or Bluetooth speakers.

For details, see How to send the output of WiiM device wirelessly to another BT devices.

WiiM devices support only one Bluetooth connection at a time for audio output.