A long time ago I used Logitech’s trackball line — the much-praised M570. For a while it was my daily driver; I bought several of them and even swapped in a fancier microswitch. Then… at some point I just gradually stopped using it. Maybe I got tired of cleaning the ball every day, or maybe it was the lack of Bluetooth, which always meant giving up a USB port — either way, “trackball” quietly dropped off my peripherals list. Later I heard Logitech had put out a new trackball with some kind of electromagnetic scroll wheel, but the price was absurd. Then came the M575. It’s the M570 with Bluetooth added and a slightly reworked shape, and that seems to be about it. Filling in the old model’s Bluetooth gap took Logitech at least five years. Impressive stuff.

I have a Logitech T650 touchpad, but I bought it 4 years ago. Recently I dug it out on a whim. It still works fine, honestly — but that’s exactly when you get cocky and drop the thing…

I’ve bought a bunch of cheap car mounts before, and they all died on me… So after a friend’s recommendation, I figured I’d buy something a bit nicer. He suggested Logitech’s IS40. The IS40 looks pretty good, but it still uses the same magnetic approach I’d tried before, so you need the metal plate. Fortunately I mostly use it with a Nexus 5X, so a metal plate is fine, whatever. As for magnets messing with phones — the Pixel C and the Apple iPad line all have magnets built in and nothing goes wrong, and Logitech’s manual says it’s fine too, so I’ll take their word for it.

The first time I worked up the nerve to spend over 1000 on earphones, I bought the UE TF10. I figured I’d already picked up an F807 and decided to listen to FLAC, so I ought to pair it with something decent. That TF10 stayed with me for a long, long time. I got to know its sound so well I couldn’t know it any better: strong instrument rendition, powerful resolution, rhythmic bass, and… vocals buried under the bass and instruments, plus a fit that was a struggle to jam in no matter what. Two years later, one side of my TF10 finally developed a problem, so I had to let it go. It was a US-market unit, and there were no new TF10s on the market anymore… I could only switch to the ER4P, though sometimes I couldn’t help missing that aggressive TF10 sound. Compared to the ER4P it wasn’t transparent at all, but it was genuinely great for rock. Later I picked up a cheap TF10 unit on eBay, put it on, and just shook my head. That cheap, it was probably foreign e-waste. The resolution was there, but the sound was far too muffled… So how does the TF10’s successor, the UE900, perform?

Over in the hardware section of S1stage, people have recently taken to calling Logitech “poop.” The origin of this meme is kind of funny—one day some guy stormed in demanding mouse recommendations, laid out a whole pile of requirements, and then tacked on: “Don’t recommend me Logitech. Logitech is poop.” And the whole thread derailed instantly, filling up with congratulatory messages from all sorts of poop users. Honestly, as a die-hard poop loyalist, I still quite appreciate poop’s……………after-sales service.

During Spring Festival JD had a coupon, 200-50, so I couldn’t help myself and chopped off the Logitech touchpad that normally sells for 199, the T650. It came to 149. I’ve been using it for a while now, so let me talk about how it feels. Since I mainly use Ubuntu, I’ll focus on that. For the summary crowd, look here: works, usable, serviceable, but not what you’d call nice. Fine as a backup. Actually, at first the shop owner said for ten extra yuan he’d throw in a knockoff copy of something like a black-and-white bear thing, and I refused……

As a weakling who can’t do anything but type, I’ve actually always wanted to use an iPad as a typewriter. The touchscreen is fine, but it’s just too much effort, and not having a physical keyboard always feels like something’s missing. So one day, while wandering around Tmall, I saw a Logitech Bluetooth iPad keyboard for 200-something yuan, down from an original price of 600-something, and bought it on the spot. After getting the keyboard, I immediately paired it with my iPad, of course over Bluetooth. The iPad paired with it easily, and after pairing once, all you need to do is flip the switch to use it again.