Advantages are:
1) The working line coincides with the computer monitor center; therefore, the proper working gesture is sustained.
2) Allows left hand to input numbers while right hand controls the mouse simultaneously.
3) Mouse is closer to your right hand.
4) Two sets of editing keys each separately allocated on the left hand and right hand side for convenience!


19 Programmable Hot-Keys
Customized all your special needs with 19 Programmable Hot-Keys to expedite and thoroughly utilize your computer usage time.

Left Hand Num key
A4 Tech’s Exclusive Left=Handed Numeric Keypad not only allows both hands to work simultaneously, but also naturally adjust user’s typing gestures by bringing the keyboard closer to the mouse.

Anti-RSI Shape Keys
A4 Tech’s Exclusive “A-shape” key layout prevenets Repetitive Strain Injusry (RSI) from your wrists and arms. Center “A-shape” keys match the way your fingers naturally move and provides maximum comfort while typing.

Egonomic Design
Relax your busy clicking hand with ergonomic thumb resting design mouse.

3rd “Pan” Wheel Button
Simply click on the 3rd wheel button and instantly access the Pan function and overview your documents and images

4th & 5th Zoom Button
The 4th & 5th Fingertip Zoom Buttons enable instant zoomin/out image or document within hundreds of zoom-supported documents. While accessing the Internet these buttons serve as Forward and Back functions.

Rechargeable Receiver
A4 Tech’s Exclusive Rechargeable Receiver not only distributes a secure and reliable connection, but also supplies endless battery life with built-in battery charge and free rechargeable batteries.

Specifications

• Number of keys: 103~108 keys
• Transmission Range: 2 m or 6.5 ft

• Image Processing: 4.8 mega-pixels per second
• Resolution: 800CPI
• Tracking speed: 45 inches/sec
• Auto Frame rate: 1000~2300 frames per second
• Transmission Range: 2 m or 6.5 ft

• 2-channels & 255 user ID codes
• AAA Ni-MH 600 mAh Battery Charger

• Keyboard: 17.9L x 8.3W x 1.3H in.
• Mouse: 4.9L x 2.8W x 1.8H in.
• Receiver: 3.7L x 2.6W x 0.9H in.

• 1 Wireless RF keyboard
• 1 Wireless Optical 4D mouse
• 1 RF Receiver & Charger combination
• 1 Wireless Optical Desktop Software
• 4AA Ni-MH 1400 mAh rechargeable batteries for mouse
• 2AA Alkaline batteries for keyboard
• 1 year warranty
• User's Guide

• Windows 95, 98, Me, NT 4.0, 2000, XP, Vista
• IBM PC or compatible desktop system
• Connection USB
• Requires Floppy Drive to install included software

Wireless Left Handed Office Desktop Keyboard
KBS-2550USBRegular price: $69.95Ergoguys price: $49.95