Philips 21PT5425 21" real flat TV. Display diagonal: 533.4 mm (21 "), Aspect ratio: 4:3, Display: Real Flat picture tube. Analog signal format system: PAL B/G NTSC PAL M PAL N. Audio system: Incredible Surround SAP Stereo, RMS rated power: 2 W, Sound enhancement: Auto Volume Leveller Ultra Bass. Colour of product: Silver Frost, Black. Power consumption (standby): 3 W, Power requirements: AC 100-250V, 50/60Hz