Is the subwoofer truly wireless?

Yes. The subwoofer connects wirelessly to the bar, so you only need a power outlet near it. That means no speaker cable across the room.

Does it support Dolby Atmos?

Yes. It is Dolby Atmos enabled with two up-firing height channels, so compatible content gets overhead effects. The effect depends on your ceiling height and seating.

What inputs does it have?

HDMI and Bluetooth. HDMI is the connection to use with a TV; Bluetooth is for streaming from a phone or tablet.

Can I add rear speakers?

No. The M70 is a 3.1.2 system with the subwoofer as the only add-on. For true surround you would need a bar with separate rear speakers.

Is $139.99 a good price?

It is the best new price across 5 stores as of November 7, 2026. Atmos bars with a wireless subwoofer rarely go much below this, so it is a fair deal.

Can it be wall mounted?

Yes. It is designed for wall mounting, which keeps it off the TV stand. Check that your wall can take the bar's weight and that the height channels still fire upward.