The case that holds the battery should have been designed with a cover. The batteries can easily pop out. However, I took some advice from Red Green, and thought of the handy mans duct tap. Then I realized that it’s probably conductive. So I reached out for the Electrical Engineers handy man’s black electrical tape. The batteries now stay in. Remember folks, if the gender of your choice doesn’t find you handsome, at least they will find you handy. Keep your stick on the ice.

One more thing, if the bags of screws, nuts and lock nuts were labeled with part numbers, that would be so helpful. Fortunately I had a sharpie to help keep track.

Would still highly recommend the kit. Just be prepared to help your child with assembly.

mBlock did a great job supporting this product. I was having a problem connecting. I didn't see the usb connection at the back and had miss understood where to connect. A simple fix once they noticed my problem. We did a team viewer and were able to get me up an running!! Thank You bBlock!!!

Fantastic!!! It's so much fun to build and program, absolutely worth the price.

it is a suitable birthday gift for around 10 years old boy. This robot works easy and controls well by little boy’s voice. My son spend a lot of time play with it. I am happy to have this for him. It is a cool toy robot, it worth the money.

I bought the robot as a birthday gift for my 8 yo cousin. He was amazed. To build it, the kid needed help, otherwise he could damage or lose the screws, so make sure to be with the child. After that, the app in mode history was fun and he learned basics in programming. You could improve the app.

Gave this to my son for his 13th birthday. He loved putting it together. It was easy for him to work with the app that came with it. He ended up taking the treads off the wheels because it bogged the robot down so badly that it didn't move at all. He's not tried too much of the programming, just used the preset programs in the app, but summer isn't over yet!
I would definitely recommend this for any kid that like to build using Lego's and such. It is also good for the computer players because of the programming component. I suggest having some basic tools near by in case you need them. For example my son broke the hex tool that came with it and had to find one of the screwdriver heads with the hex size he needed to make it work. Nothing major! My son was able to build it mostly on his own with only a little guidance here and there so it isn't that difficult. I would say any 9+ child could build and operate on their own. Any younger will need a little parent help but can mostly do it themselves I would think.

packaged very well, arrived a little early, just like photo, very good quality and a great price

Bought for my granddaughter who was already in stem. She is smart as a tack! Challenge our youth, they need it!

Service is great and prompt! I will do it again, and recommend others.

I do think the Makeblock truly give best bang of your buck when it comes in robotics and programming learning for younger students from Gr. 5+ .

Compare Ranger with LEGO Mindstorms, Ranger or MBOT 2 wins "hands-down"; NO doubt.
Comparing Ranger with VEX-IQ, Ranger definitely gives you higher ROI; NO doubt.
Comparing Ultimate with VEX the more advanced kit, again Makeblock Ultimate 2.0 wins as it allows opensource hardware and software.

Now, if your child simply love LEGO too much.. perhaps have them signed up for a CAD class to 3D-print their own parts which they use to attach LEGO pieces. Well, I could really write a long article about the comparison.. just don't get the luxury of spare time.

Superbe robot mais malgré tout j'y trouve un inconvénient, le robot est très énergivore avec ses six piles mais maintenant que j'ai mis des piles rechargeable je n'ai presque plus besoin de me soucier de la batterie.