Under the spidery lattice of Berlin’s Funkturm radio tower, the IFA 2025 consumer electronics expo spills through every lair and level of the Messe grounds. It’s a series of architecture you operate: escalators are levers, skybridges, secret passages; many different doors, literal puzzle switches unlocking the next gear reveal. Elsewhere, Dreame and Eufy showed off actual stair-climbing systems, which scoop up their respective robot vacuums in a chassis to move freely between floors. The Anker Soundcore Nebula X1 Pro 4K wraps a 3500 lumen triple-laser 4K projector and 7.1.4 surround sound system in a party speaker-like body, complete with wheels and a telescopic handle. On the speaker side (and size) of things, Swedish brand Audio Pro already produces impressively punchy, connectivity-rich smart speakers with clean Scandinavian minimalist looks.