Nokia designers employed techniques such as the use of metal injection molding on the function keys. A specially reinforced glass used in luxury timepieces provides toughness and scratch-resistance to the front display (TFT LCD 256K colors, 208 x 208 pixel resolution), and even the Nokia marque has been chemically etched on the back plate using a process typically used by watchmakers. The 'pop-up' mechanism uses a bi-stable spring mechanism and stainless steel ball bearings, like those used in high-performance automobiles. When open the phone also reveals a hidden SVGA 0.5 megapixels digital camera on the back. The tri-band GSM phone operates in 900/1800/1900 networks and provides GPRS and EDGE connectivity. The phone comes with 64MB internal NAND flash memory, and supports the Bluetooth wireless technology, inclusing SIM profile to be used with some Bluetooth car kits. Inside there is further attention to detail, with an exclusive user interface with its own styles and themes. The 8800 comes with a set of ringtones composed especially for the 8800 by Ryuichi Sakamoto. Overall, the Nokia 8800 is all about creating a big impression.