was founded in 1987, with Corporate Head Quarter in Taipei, Taiwan and Operating Head Quarter in California, U.S. A. Product categories include; Keyboard, Mice, Headphones, Speakers, Game Pad and PC Camera. A4Tech Wireless Battery Free Optical Mouse (NB-30)
Today, we are looking into two mice device that A4 Tech sent to us. The Wireless Optical Mouse with no battery required; and the Easy Go for people on the move. First, let's look at the No Battery required Wireless Optical Mouse.
I have been using wireless mice for over two years, with which I enjoy not having the cord hindering the movement at the “critical moment” – last 30 seconds to place my bid on eBay for example. But, it also gives me a “warning” of “Battery is critically low” on the eleventh moment. I’ve found myself rushing to the cabinet for fresh batteries, only to discover I did the same thing two weeks ago with the last two AA cells I had without replenishing the inventory.
• Wireless Freedom
• Latest RFID Technology
• High Optical Precision Resolutions
• Ultra light weight and smooth
• No battery required
• No battery cost
• No RF interference
• Saves you moneySystem Requirements:
• Windows Me, 2000, XP, 2003
• USB Port
• IBM or CompatibleContents
• Wireless Optical Mouse
• Mouse Pad
No Battery is because the Wireless mouse is working in tandem with a mouse pad supplied which is power by USB connection. Using Cross Induction Power
and RFID (Radio Frequency Identification) the mouse is energized, and communicates at 121-128 KHz. Induction associates with magnetic field. it is recommended that the mouse pad to be kept a distance of 20 cm or about 8" from any CRT; the same reason it is advised not to use the pad on steel surface or an inch (20-50mm) thick book of some sort placed beneath the pad.
Before we go on to the next page, my editor "advised" me to get to know more about Optical Mouse Inductive Charging Theory
which I am glad to share with you.