Philips 21PT6146 21" real flat TV. Display diagonal: 533.4 mm (21 "), Aspect ratio: 4:3, Display: Real Flat picture tube. Analog signal format system: NTSC. Audio system: Mono, RMS rated power: 1x3W, Sound enhancement: Auto Volume Leveller. Colour of product: Techno Silver. Power consumption (standby): 3 W, Power requirements: AC 90-140V, 50/60Hz