Big room is a subgenre of Electro House, whereas Electro House is a genre in its own right. Electro House generally has a BPM of 128 to 140, whereas Big Room has a BPM of 126 to 132. Big room is also considered to be a combination of Electro Techno and Hard Dance, whereas Electro House is more straightforward Electro. Finally, Big Room typically has a high-energy climactic build-up and a simplistic bass-heavy section, often referred to as the drop, whereas Electro House does not always have this.