1. With bracket at the bottom, typing comfortably. 2. Ergonomic design, comfortable hand feeling. 3. Number of keys: keyboard: 104 keys, mouse: 4 keys 4. Transmission mode: 10m wireless 5. DPI adjustment: 800/1200/1600 6. System support: Windows XP / Windows Vista / Windows 7/8/10 7. Weight: Keyboard: about 498g Mouse: about 95g 8. Dimensions: Keyboard: 445 x 138 x 28mm Mouse: 114 x 64 x 26mm
