I have purchased this trimmer since 2015.At first it was working well.The standby time of this trimmer was more than 30 minutes but now standby time is reduced to only 15 to 20 minutes.The blade is not moving well.Sometimes the axle is moving but it is not able to moving the blade.Another problem is that its slow charging.It takes around 8 hours of un interruptable power supply for full charge.It is a skin friendly trimmer.It is noted that you cant not use this trimmer while charging.If u want to buy a long lasting trimmer then dont buy this model.