effective remote trigger with some weaknesses

advance: for the money it is a cheap alternative to the original Canon accessories. The remote release is serving and is thus perfectly okay. However, I would also like to point out a few weaknesses that lead to deduction of points:

- Instructions in English
- The supplied batteries have kept about 10 minutes

and now for me the main problem:

- Remote release requires 2 x AAA cells. With batteries (1.5V) it works perfectly, however, I use rechargeable batteries (1.2V), the display is barely legible. The voltage of batteries is therefore not sufficient really to illuminate the display adequately ....