The Nintendo DS features a A backlit, 3-inch, semitransparent reflective TFT color top screen with 256 x 192 pixel resolution and .24 mm dot pitch, capable of displaying 260,000 colors and a transparent analog touch screen on the bottom. It also features wireless through IEEE 802.11, wireless range is 30 to 100 feet, depending on circumstances; multiple users can play multiplayer games using just one DS Game Card. It also features embedded PictoChat software that allows up to 16 users to chat at once; embedded real-time clock; date, time and alarm; touch-screen calibration.