The new GLA Bitstream tower can be spatially compressed or decompressed and symbolises the authority's data and energy efficiency. The number of floors in the building can be modified according to need, at between 30 and 45 storeys in order to demonstrate efficient use of resources, including staff and energy. The building has in-built 'direct net' broadcast equipment, permitting broadband wireless diffusion of GLA information and interactive services within the London region. Users who opt for the pay as you go interactive service can participate in all consultative surveys and register their votes via their noki-doki personal communicators.