Home > Consumer Reviews > DSI 2.4GHz Wireless Keyboard with Optical trackball Black RK-768

This is a great wireless keyboard. The roller is on the right and the scroll and select buttons on the left. Has long range transmission, in addition to using it as a regular keyboard, I use it to control videos I've moved from my computer monitor to TV screen. The only drawback is that the frequency has to be reset fairly often to keep it functioning correctly, anywhere from once a week to once a day. Even at that it's a good keyboard.

I bought this as an upgrade from my BTC keyboard.
It has the number pad and scroll wheel like all trackball keyboards should.
I got mine brand new and it came with 2 batteries, the BTC uses 4.
Just plug into the USB port, sync and go.
The Trackball is very responsive there is no sticking and I am able to use the pen tool in Adobe Illustrator with precision.
Still no capslock light but that's nit-picky.
Sleep and Wake-up feature is great and I never had to re-sync even after turning my PC off.
If you have a media center PC, you will surely love the features and 1-touch access to media functions.
Im not sure why this was built this way but a few of the keys are re-arranged but yet easier to get to.

This is another item I Highly Recommend.

I purchased this product for use on the Windows Vista computer that is part of my home entertainment system and so far it is working great.

When I received this product it looked cheaply made and 2 of the keys had not been snapped on. I snapped the keys in place and when I set it up all the keys worked fine.

It was very easy to set up. First you place 2 AA batteries in the keyboard (Not Included). Then you plug in the USB stick and press the sync button on the USB stick. Then you press the sync button on the bottom of the keyboard and it was ready to go.

The keyboard comes with a battery save feature in which the keyboard sleeps after it has been idle for a little while. To reactivate it just tap any key. I did notice that once in a while the keyboard didn't respond but when I would re-sync the keyboard it would work fine.

Sometimes it takes a few rolls to get the trackball to be responsive but I think that is due to the cheap construction. The trackball works great, is easy to use and very accurate.

There is no ability to set up the silver quick connect keys at the top so my guess is they only work with certain versions of windows.

The keyboard feels like it is cheaply made from the way the trackball, buttons, and keys feel but I have dropped it a few times and it still keeps working just fine.

I gave this keyboard a four (4) star rating because of the features and ease of use. I enjoy that the keyboard has a full number pad and the trackball is easy to use and is integrated into the design of the keyboard very well. I would recommend this keyboard to anyone who wants to save money on an all-in-one wireless keyboard/mouse, does not mind a cheap feel, but still wants all the functionality and ease of use of a standard keyboard/mouse. Personally, I am really enjoying it.

Unfortunately the one I got was nothing but trouble. I really wanted a full keyboard as I have an Adesso mini that I really like in the living room but wanted a keypad for my Theater system. I have two Vista home premium 32 systems; one HP and one custom and tried it on both. All of the problems below are consistent on both systems (their also were problems unique to each but I am leaving those out as qwerks).

MCE keys did not funtion at all. I used the trackball to launch Media Center and it went to videos and locked up in that mode. Launched Free Cell game and my sound system started pinging as the LED on the RF USB dongle flashed to the beat. Left mouse button mostly would only function in a click mode; if I pushed really hard I could drag and drop -sometimes. Basically Amazon is taking it back.

I'm just missing a left & right buttons by the mouse/ball, to make it easy to work with one hand.