Philips 21PT5409 21" real flat TV. Display diagonal: 533.4 mm (21 "), Aspect ratio: 4:3, Display: Real Flat picture tube. Video playback: NTSC. Analog signal format system: NTSC PAL SECAM, Supported radio bands: Hyperband S-Channel UHF VHF. Audio system: Stereo, RMS rated power: 2 W, Sound enhancement: Ultra Bass. Colour of product: Silver Frost(11027)