Initially, the device is working properly. Unfortunately, after a relatively short period of time (approximately 6 months) began the noise level significantly increase. At the same time began the blades, hair pluck more than cutting, which can be sometimes quite unpleasant. Same remedy (clean, oil), I could not. Have the device simply again bought because it had previously worked very well. Unfortunately, the same thing happened after the same time on again. Can therefore only strongly advise against the purchase.
