Philips 21PT5437 21" real flat TV. Display diagonal: 533.4 mm (21 "), Aspect ratio: 4:3, Display: Real Flat picture tube. Analog signal format system: NTSC PAL PAL B/G PAL D/K PAL I, Supported radio bands: UHF VHF. Audio system: Stereo Playback, RMS rated power: 2x5W. Colour of product: Bi colour Black, Silver Frost. Power consumption (standby): 3 W, Power requirements: AC 100-240V, 50/60Hz