On the NT3160 model (series 3000) I found all the qualities of my NT9110 / 10 Philips but it was added for leaks of the head and simplification of maintenance: no need to lubricate the blade, "Great!".
This trimmer comes with two shoes that allow you to trim your eyebrows with precision, but what really makes the strength of this product, this is the finesse and incline of the head which gives it a perfect ergonomics on the ears and nose, efficiency is formidable, Philips has equipped this trimmer its new technology "ProtectTube technology" that is supposed to protect yourself irritation and cuts in reality this is very effective (there marrivait feel the blades on model winds down, here we have nothing nen) the technology used is not as marketers, bravo.
As previously Philips has chosen the stack of AA or LR06 1.5v, the system has changed, the battery is now crept into a support "+" of the battery down (this is not very natural, jai reversed the first battery), an O-ring provides for leaks from the battery compartment (as Lancian model), alkaline battery is included, from experience I can assure you that his life is long (in 3 years my razor always the original battery that is little bit biased).
Philips filed in the battery compartment a small documentation in the form of pictogram that I learn that the unit must be rinsed in motor function and run the unit for maximum results (nose and ears) handy if like me you tend to move you documentations ...
The price advised on the Philips website is 19.99, making it a very good deal.
To: quality, for leaks, efficiency, warranty 2 years, price.
Against: none
Conclusion: less than 20 you really for your money, this product is very well designed and improved over the NT9110 / 10, small hooves allow master trimming eyebrows with precision and accuracy, I think about this product remarkable, to the use you will realize that this is anything but a gimmick