Philips LFH0720, 200 - 6000 Hz, 135 mm, 232 mm, 50 mm, 23.1 cm (9.1"), 5.08 cm (2") Philips LFH0720. Frequency range: 200 - 6000 Hz. Width: 135 mm, Depth: 232 mm, Height: 50 mm. Depth (imperial): 23.1 cm (9.1"), Height (imperial): 5.08 cm (2"), Width (imperial): 13.5 cm (5.3")