KMNL 2TB USB 2.0 Flash Drive Waterproof Metal Pendrive High Speed USB Stick (Gray)

These are really fun dice, so that you can play D&D... IN THE DARK! I definitely wouldn't ever do that, but I could imagine some playgroups who would really want to set mood lighting. These would be perfect for that. They light up reliably, and stay lit for a long time, well past the point at which you've read the number. It's advertised as 20 seconds, but that feels like a looong time. Is that awesome? Annoying? Unnecessary? That's up to your taste. But when they say light-up dice, these certainly are that. The lights flash in a sparkling pattern, blinking on and off - it's not like they light up with a steady light - as you can see in the product video, they go crazy. Again, up to your preference.I have two minor quibbles and one major one:1) The first set I received was shipped without a charging cord, so I had to return them. Easy enough.2) The second set did come with a charging cord, but the hinge came partially broken, as you can see in the photo. This leads me to my major quibble...3) These dice are annoying to charge. Each die has a set of contact points on one of its faces, which must be placed face down against the contact points in the charging case in order to receive a charge (a helpful card with this info is included in the box). This is easy with a cube-shaped d6 or pyramid-shaped d4. It is difficult with a d8 and rage-inducingly impossible with a d10. On top of all that, the case must be closed to charge the dice. Essentially, the pressure from the lid of the case must be applied to press the contact points on the dice and the case floor together. With the broken hinge, this is still possible, but if the small plastic clip that keeps the case closed ever breaks, and I fear it will one day, these will not be chargeable unless I lay something heavy on top of them.The dice feel light in your hand, lighter than standard dice, but not uncomfortably so. They are a bit flashy and "extra," as Gen-Z likes to say, but hey, if you are buying light-up LED dice, you aren't exactly going for subtlety in the first place. One thing that's nice about these is the neat pattern on the dice. I've seen other light-up dice that are plan dice with lights inside them, but these have what look like a pattern of carved engravings on their faces that make the dice nice to look at even if they're not lit up.If I was trying to level up my dice collection, I'd prefer metal dice or a beautiful-patterned resin to these. However, if flashy, light-up dice are your thing, these are both cool and beautiful. Just know that you'll spend some time trying to fit them all back in the case and orient them in the right direction at the end of the night.

They are and work just like you hope.

All dice actually charge, which is better than most of the other light up sets where for some reason the d6 often won’t charge or light up.

I'm a gamer. Sorry, I meant to say "I love dice." I think those are synonymous, but non-gamers don't get that. So yeah, I love dice. I have a lot of dice. Lately I've been getting a lot of metal dice, because they're popular. But I also have a lot of "traditional" dice. I've even picked up a few light-up dice in the past, and they've been cute distractions, but nothing (if you'll pardon the pun) game changing. These dice are...so close to being different.Let's start by saying that these dice don't look quite as cheap as some other light-up dice. There's some black filagree on the white plastic that makes them look a bit more stylish. They're not rounded, but that's more a function of the places where the plastic sides connect, rather than being sharp-edged in a trendy modern way. All of that becomes secondary when you roll them and watch the lights flicker behind them, and then start pulsing regularly when they settle. That's the moneymaker right there.The best thing that differentiates these dice from other light-up dice in my collection is that these flash in colors instead of just white light. With multiple colors pulsing behind different parts of the dice, you don't notice the flat plastic behind it. They bring some much-needed "ooh" factor to an ordinary roll (even if you fail).The best part about these dice compared to some other light-ups I've had is that they're rechargeable. Others have had non-replaceable batteries, so when those gave up, that was it. And since you don't roll all dice with the same frequency, some of them gave out before others, leaving you with a lot of cheap looking and feeling dice that didn't do anything, just so you could keep rolling that one that still flashed a bit. So this is a good step up.They recharge in their case, which is bulky and feels a bit cheap. Inside are a number of slots that are specifically sized for each die, with charging prongs in them. It latches shut to hold the dice against the charging prongs, so you have to press on a tab to open it. It's worth mentioning that recharging does require you to pay attention to how you put the dice in their case in order to line up the prongs with the metal connectors on each die. In order to keep the dice pressed against the prongs, you have to fit them exactly in the slots, which can be very fiddly.Sadly there doesn't seem to be any rhyme or reason to where the connectors are on each die. If they were set so that the highest number faced up (i.e. 20 on the d20, 12 on the d12, etc.), that would make sense. But no, it seems mostly random, meaning you have to turn each die over and over to find the connectors to put it in right. You also have to make sure the die is facing the right direction in the case too, because the connectors aren't always centered. No, the right direction isn't always with the number facing you, because that would be too easy.So overall, these feel like someone who knows games but not electronics had a great idea, described that idea to someone who knew electronics but didn't know dice, and then just let them do their thing. It's so close to being a perfect execution, but in the meantime, it's a fun gimmick.