They are about 55mm high and their subwoofers are built-in to the body.
In addition to that, both models can wirelessly connect through Bluetooth compatible devices so there is no need for speaker cable wiring – they can be placed very neatly and in a wider variety of places.
SC-HTB170 has “Shindo (vibration) killer” function to reduce unnecessary deep bass sound vibration. You can choose a set-up angle out of 4 different angles (0 degrees, 30 degrees, 80 degrees, or wall hanging 90 degrees), and sound gets modified depending on the angle you choose. It has an HDMI terminal.
With SC-HTB65, you can choose a set-up angle out of 2 angles (0 degrees or wall hanging 90 degrees).