Yes, the TiVo Stream 4K supports Bluetooth devices. To add a Bluetooth device, make sure your device is in Pairing mode. From there you can add the Bluetooth
device by going to:
From Android TV Home > Go to Settings > Remotes & Accessories > Add Accessory > TiVo Stream 4K will then search for Bluetooth devices in pairing mode; after it discovers it, select it to add the device.