10 x 25, which makes an exit pupil of 2.5 mm, so it has glass just enough light. The 10x magnification with a field of view of 114 m / 1000 m and the limited depth of demand for this lightweight glass for a steady hand and a perfect engine. What to say ... fully managed one - the glass can be focused very well. The engine is well positioned sufficiently large and beautifully translated. The minimum focusing distance is about 2 - 3 m. The eye relief for eyeglass wearers not suitable!
Optical glass is above average in its price range. The tubes were clean copy of my adjusted and blackened. Regarding sharpness, color fringing, distortion and contrast there is sufficient light at nothing to complain about. Aside from extreme lighting situations where some reflections and color fringes are visible.
A slightly more expensive alternative would be the Nikon 10 x 25 Travelite CF EX binoculars. Design and manufacturing is here a bit better to the one gets a robust aluminum housing. The eye relief is here suitable for eyeglass wearers.
I subtract a star because of lost caps and the unsuitability for eyeglass wearers. Nevertheless, a strong buy recommendation for anyone looking for an inexpensive 'always with you'!