I'm somewhat dissapointed with this shaver. I already have a 1000 series shaver and it has a pop up trimmer on the back. This new version does'nt. Also the charging method is different. This new version has to be charged, either from a USB socket on a laptop, or from a mains wall socket that incorporates USB sockets. My original version is able to charge from a standard three pin mains socket, via an adapter or by the shaver socket on my bathroom wall and this can be done while using the shaver.