Small handy, help rich keyboard

I run the keyboard on Technisat ISIO Digicorder C. After unpacking I znächst must load with the USB cable while lying the inserted rechargeable AA batteries. A small LED showed me after about 1 hour operational readiness. The USB dongle I was in the front USB port and pressed located at the bottom of the keyboard pairing button. The keyboard has been recognized by the ISIO C.
Somewhat unusually seemed at first to use the keypad, but what I got used quickly. Only the trackball to move the cursor was not working. A call to Technisat brought the solution: In the C ISIO menu under Settings / special functions icons on "mouse" switch. Now everything works.
Pros: small, handy, light.
Small restriction: Compact control buttons, but still in the reasonable Bedreich
Less good: trackball cursor very empfinglich. Whether you can adapt to the slower movement?
Summary: The keyboard 2 of Technisat is recommended, because the operation with the remote control is too cumbersome.