A display assistant device, comprising: a base having a housing configured for sitting on a surface, the housing of the base having a front side and a rear side; a screen having a rear surface, the screen being supported by the front and rear sides (50A, 502B) of the housing of the base at the rear surface, wherein the rear side of the housing is taller than the front side and a bottom edge of the screen is configured to be held above the surface by a predefined height (h) the predefined height (h) being less than a predetermined threshold so that the base supporting the screen is substantially hidden behind the screen from a front view of the display assistant device and the screen appears to float in air; a rear speaker assembly that is concealed inside the housing of the base, wherein the rear speaker assembly includes an enclosure structure and a rear speaker mounted in the enclosure structure, wherein the enclosure structure provides an enclosure for the rear speaker, is assembled into the housing of the base and exposes a rear opening of the rear speaker facing the rear side so that the rear speaker is oriented to project sound towards the rear side of the housing of the base; and one or more front speakers, wherein the one or more front speakers are concealed inside the housing of the base, face the front view of the display assistant device and are configured to project sound out of the housing of the base substantially via the front side of housing of the base, wherein the one or more front speakers are also mounted in the enclosure structure of the rear speaker assembly, and wherein the enclosure structure includes an upper portion and a base portion the base portion being configured to hold the front and rear speakers (616, 620) and the upper portion being mechanically coupled to the base portion for providing the enclosure and being configured to support a main logic board of the display assistant device. a base having a housing configured for sitting on a surface, the housing of the base having a front side and a rear side; a screen having a rear surface, the screen being supported by the front and rear sides (50A, 502B) of the housing of the base at the rear surface, wherein the rear side of the housing is taller than the front side and a bottom edge of the screen is configured to be held above the surface by a predefined height (h) the predefined height (h) being less than a predetermined threshold so that the base supporting the screen is substantially hidden behind the screen from a front view of the display assistant device and the screen appears to float in air; a rear speaker assembly that is concealed inside the housing of the base, wherein the rear speaker assembly includes an enclosure structure and a rear speaker mounted in the enclosure structure, wherein the enclosure structure provides an enclosure for the rear speaker, is assembled into the housing of the base and exposes a rear opening of the rear speaker facing the rear side so that the rear speaker is oriented to project sound towards the rear side of the housing of the base; and one or more front speakers, wherein the one or more front speakers are concealed inside the housing of the base, face the front view of the display assistant device and are configured to project sound out of the housing of the base substantially via the front side of housing of the base, wherein the one or more front speakers are also mounted in the enclosure structure of the rear speaker assembly, and wherein the enclosure structure includes an upper portion and a base portion the base portion being configured to hold the front and rear speakers (616, 620) and the upper portion being mechanically coupled to the base portion for providing the enclosure and being configured to support a main logic board of the display assistant device.