Philips 21HT5504 21" professional TV, 53.3 cm (21"), 4:3, Real Flat picture tube, 4:3, 55 cm, 51 cm Philips 21HT5504 21" professional TV. Display diagonal: 53.3 cm (21"), Aspect ratio: 4:3, Display: Real Flat picture tube. Analog signal format system: NTSC, PAL BG, PAL DK, PAL I, SECAM B/G, SECAM D/K, Supported radio bands: UHF, VHF. Audio system: Stereo, RMS rated power: 2 W. Product colour: Silver. Remote control type: RC86702/01 (not included)