User Manual 1 By One BELT DRIVEN TURNTABLE with Built in Stereo Speaker

Not without at least a cable, as Sonos speakers are not Bluetooth. You can connect to Sonos in a couple of ways:
1) turntable -> RCA (red/white) to mini (headphone) plug cord -> Five/ play 5
2) turntable -> RCA cables -> Sonos connect/connect amp/port/amp
The amplifier function depends on whether or not you are trying to 1) tie a turntable into an existing Sonos system or 2) if you want to tie into an existing Sonos system and also want if dedicated wired, non-Sonos speakers.

No it does not have auto return on the arm unfortunately. Wish it did. Otherwise it’s a pretty nice turntable.

As for your issue, we kindly suggest you try below steps:
1.Follow the instructions to pair the Bluetooth speaker and the turntable, turn off other device's Bluetooth function to avoid interferrence.
2.Please check if the Bluetooth indicator will flash while pairing.
3.The best pairing range is within 16ft. You can try to turn on the turntable first or turn on the Bluetooth speaker first.

This model has a built-in phono equalizer function. You can use the turntable, even if you do not have a phono amplifier or connectable equipment with a built-in phono amplifier.