I'm not home at the moment, but I'm pretty sure they don't have an HDMI input. I haven't seen speakers that do, except sound bars. I don't like the general premise of sound bars. You either need a subwoofer, or you're limited to too-many too-small drivers.
Active bookshelf speakers with HDMI Arc input are getting more common. Kanto Ren, Kef LSX II, Klipsch The Fives, Elac Debut ConneX
There's also the compact, simple alternatives to bulky receivers that are becoming available: Wiim amp, Sonos amp, Eversolo play, and the cheaper chinese makers like SMSL and Fosi. Each of those brands has a small device the size of an apple tv that will take an HDMI Arc input, and output an amplified signal to power some passive bookshelf speakers.
There are a couple of brands that sell them, that’s what I meant. I prefer bookshelf speakers over a soundbar due to the larger drivers and better stereo separation
You can have bookshelf speakers with an integrated amplifier and HDMI-ARC. All you need is an HDMI cable between the TV and the speakers.