https://www.nintendo.com

32-bit CPU with integrated memory
Dimensions: 82 x 144.5 x 24.5mm
Weight: Approx. 140g
Power supply: 2 AA batteries
Playing time: Approx. 15 hours
Screen type: High-resolution TFT screen (TFT = Thin Film Transistor)
Screen dimensions: 40.8mm x 61.2mm
Displayable colours: 32,768 displayable colours
511 colours displayed simultaneously in character mode
32,768 colours displayed simultaneously in Bitmap mode
Screen resolution: 240 x 160 pixels
Game paks: Interchangeable
Volume control: Yes
Headphone connection: Yes
Two-way cable connection: Yes

Key features:
Battery charge LED-display (with alternating colours, green to red).
PCM sound reception (stereo headphone sound).
Compatible with virtually all Game Boy, Game Boy Pocket and Game Boy Color games.