LEFEETUnderwater Scooter S1 Pro, 3 Speed Adjustments, Max Speed 6.5km/h ，Modular Sea Scooter with Action Camera Mount, 40M Depth Rating for Water Sports Diving, Snorkeling, Swimming, Freediving

I used this product on a trip to Virgin Gorda. It was very easy to pack in my checked bag, I could have put it in my carry-on. The scooter functioned flawlessly while on the trip. It was easy to assemble, the controls are easy to use. I packed it in pieces and put it together when I got there. the three speeds are nice. I ended up buying the extra battery, but I probably didn't need it. We were out free diving for three or four hours, and I would just use it to boost my swimming from time to time, and the battery lasted the whole time. I am a big guy, 6'8" and 275. This scooter did not drag me through the water at a high speed like the giant ones do in the videos with little kids. I guess, but it was a great assist, and I am a really buoyant guy, and it helped me get down deep in the water. It was able to pull me through the water under its own power, without me assisting at all. This was especially helpful in really shallow water over top of reefs, because I could just make myself float really well and let it pull me through. It seems to be really really well-made, and I felt like friggin James Bond zipping around the ocean.

TL;DR buy it now and you won't regret. This is an amazing product.Nothing short of Apple class packaging, perfect balance of sturdiness and portability. Crisp, proper installation and user's manual. Next, the product itself. Amazing build quality, everything machined with surgical precision, fits, snaps, unsnaps just as expected. Nothing wobbles or leaves any room for uncertainty. In terms of functionality, we are having a blast. We bought two of these and the double-up chassis accessory, traveled 11 time zones away with both of them internationally - batteries carried on, rest checked in. Our snorkeling experience is now much better, we can dive deeper, cover more area and able to observe fast swimming fishes easier yet still quiet and precise enough that it doesn't bother sealife. We also bought extra batteries and I suggest you to do the same. For a 190lb adult, doubled up config at full blast lasts 20-30 mins of scooting time; which equates to 1hr in water. Swap out to spare set and you're good to do for another.Maintenance: this is where reading the manual is very important. This is a precision device and should be given the respect it deserves. No leaving it with salt water.Our routine is to snorkel in sea, then finish playing in the pool for another 5-10 mins; then give it a freshwater rinse; then let it dry on a towel, then also properly dry with towel before opening the battery housing.Remote control can control both units at once; and it's charge lasts for 2 days of use, roughly. It has a magnetically snapping charging cable with usb-a on the other end (USB charger not included).Nitpicking: if you are the kind who nitpicks, a few items for you:1) ..(5mins later).. can't find any, sorry :)Now on to playing superman with my son in the pool.

When you take the main large battery out of the unit to charge it, the battery swells up and won't fit back into the unit. Very poor design. Skip buying this product.

Kids love them try in pool fist to get use to themUse it to steer pontoon boat 1/2 mile while Lao on deck ! When boat broke down

We have bought two of these for an upcoming snorkel trip. Will come back and update our review after the trip. Concerns so far are that the trigger battery runs out of power after just being charged in less than an hour on one of them. We were surprised that it has a separate power source than the main battery. We may request a trigger replace on one of them before the trip. Of course our biggest concern at this point is if we are going to make it through TSA with the battery. We did a lot of research before we bought these and really hope for the best.Update: I have performed experiments with the trigger, on both units after 15 mins. it will not pair up with the motor and must be recharged. I'm surprised no one has mentioned this. Planning to send one back before the trip. The other company will at least respond to customers from what I read.