I was being cheap at first and ordered a no name brand massager. Went thru 4 that didnt work (bought 2 at a time to use on both breasts simultaneously). Finally gave up on these and ordered these. So glad I did. They are noisy, but half the time I have heavy rain sounds playing to help baby sleep so it just adds to the white noise. Very easy to wipe down and keep clean. Compared to the newer model I felt this worked just a well and since I needed two I couldnt justify the higher price point so I stuck with the originals. Battery wise,
I use for two pump sessions and then charge, otherwise they die during the 3rd pump. But I start wearing them 5-10 mins before I start pumping as my LC said 5 mins massage before pumping and during pumping maximizes your output. Ive had success with this method increasing my supply from 22 oz to 25-26 oz/ day.