Over view:While I searched the internet for a good priced large library of games system I came a crossed the MYMIQEY Pandora Treasure 3D. The system seems well built (similar to others) the buttons function smoothly and the joysticks operate at an almost lag free experience (more on that in a moment). At first glance the system looks nice but on mine I had a lot of glue/plastic strings on the side and inside like crazy. When I first purchased I emailed the company for a games listing and asked about button options (want to change them out for different colors). They told me opening does not void the Warranty I assume moving or messing with stuff does (you must open to add games). They sent me a listing of the games in a “readable” PDF format although one of my PC has a hard time reading it. Out of the 2k + 2D games more than half of them are Asian games (this is ok but a lot don’t have English writing) this issue makes following/selection in game hard. They provide you all you need to connect the device to your T.V. (I do recommend changing out the HDMI cord for a better one) and depending on where your outlet is you may need an extension cord. They do provide a VGA cable as well although I don’t use this output any more so I have NOTHING to test it on. The system has 1 speaker inside and the sound quality is good and loud, a little tinny but it’s expected for this device (I turn this off and use my T.V.’s sound bar). Boot time is approx. 35 seconds before the menu, looks to be some sort of Android OS. The first thing I did before hooking it up was inspected the inside (see hardware). To do this you need to remove 3 small Philips head screws on the back casing than lift the top, (it is that easy!!)Hardware:Seems to be a raspberry pi style board PCB with a soldered CPU/GPU chip. This main chip does have a cooling fan/heatsink but it seems to be Glued to the board and chip. This glue on mine was everywhere so I assume it’s hot glue, I am unsure how this holds up to the heat of the system but as the inside is very large I can’t image it putting out that much heat. The back has the following soldered on ports, HDMI, VGA, 3.5 m line out two in row USB ports (2.0). The front of the board has what seems to be a mini USB port as well as an SD card slot. This SD slot is where you can upload more games.The buttons are plastic with 2 plastic clips underneath of them holding pressure to a spring ring. These operate smoothly and are on par for what should be expected hours of gaming. The Joy stick underneath shows a plastic ring not a metal one but I did not rip it apart to see where it has metal and what the movement function is. However, the joystick operates well and has a satisfying click sound like the real arcade. The shafts are plastic or composite as my magnet did not stick to them and the handle head is plastic with NO sharp edges as I have felt on other joy sticks. If you are a leave as it kinda of person this setup will work well for you.There is a RED button on the back that lights up for power (simple on off rocker switch). The settings button is labeled GFC or something like that which allows the OS menu settings (limited but see OS). And a single toggle/rolling switch for volume up/down. This vol switch was stiff which could be a good thing as this might hold to wear or bad as it could be binding already. I won’t really use it now that it’s turned down so the life of this is irrelevant to me.OS/Menu:On boot up this thing takes less than 40 seconds to be at the load screen (or main menu). This menu is VERY BLAND one of my biggest gripes compared to my buddy’s Pandora Box 6s. There are 3 options here you can select. Option 1 3D games (10 of these), Option 2 2D games 2k+ of these with a lot of repeats and Asian games (still great amount) and lastly Option 3 which is the games you have recently played (this is nice) but there is NO way to PIN a game which means you must search and memorize. When you push the setting button at the home screen (physical button on the back of the system) it loads a very basic menu ( I am unhappy with this) there is no screen size adjustment here for all games this means you must select each aspect rating per game. To do this you load the game than hit the pause (second player coin button) and then select aspect ratio, this seems like a lot of extra work. The menu in settings is also missing an audio output setting music/effect. But otherwise it does what it needs to. One good function is the I/O setting allow you to test your equipment functionality. This is great if you want to replace the buttons or joy sticks! There is a setting to allow you to rest games, I don’t know what this does as I don’t want to wipe all of my games from the machine.Note: To get out of a game you must select player twos coin button, I did not see a way to change this in the menu.As far as uploading your games to the machine I can say it works, but search you tube for this as that isn’t part of the initial package. No ROMS or Help from me shall be given there is PLENTY of already talked about and guides for this subject.Games load in a semi fast manner some load times seem long like the first Tekken 3D #1 on the listing. This is not a deal breaker as the game operates smoothly and have no tearing during game play. The 2D game all tested 200 or so work well no issues and load a bit faster but still seem slow. The games play fast in game coin button gives you unlimited tries for game play so GOOD LUCK .Overall:Pro’s-Affordable- Priced $199.00- or less ( I used amazon 10% off coupon and rewards point and it came out to a little over 100 dollars)Smooth button operation and easy to replace (2 wires)Joy sticks function almost as good as higher end versions (no in game lag)LED’s are crisp and brightCase is clean smooth and feel great on the lap or on the table (no worries of warping or bending)Opening to modify/upgrade SD games quite simpleCustomer support/service when purchasing greatCon’s-Joy stick can lag on the interface when selecting games, does not lag in game.Price for the amount of games since more than half are in Asian writing.LED lights are very bright with NO dimmer switch in a dark room this is distracting to in game.Overall verdict:This is a must buy and something I would buy for a friend’s b-day or kid. I am happy so far with mine but time shall show how it holds up and functions. Emulation support is great but pre-loaded games are wonderful too. I have a blast playing Mega Man Arcade games 1004 on the game listing. The 3D games make this a much better buy than the BOX 6s which is not 3D and has no support on the hardware for this, despite its menu being better.For all the enjoyment I have had with this board it deserves a 5 even without a save function. What made me a little upset is the joysticks are either screwed in too tight or the screws are glued and this makes it impossible to switch to Sanwas even if you had the parts because you will strip every screw trying to get each joystick off. In the future I would suggest they use buttons that feel a bit more premium and easy option to select Sanwa but I think to their credit they may have been able to offer this service at the time you order if you just asked. I think the save function is not able to cover most of the games that I would need it to, and I was disappointed that mine came without the function.I also wish there was a way to completely eliminate the splash screen as it becomes tedious after a while. The controller support I have also found isnt compatible with many controllers. What I like most about the machine is its game compatibilities and I feel this factor alone is why I choose to give it a 5 in spite of all these complaints in hopes they are corrected in future versions so that I may be a repeat customer.Update**Reached out to seller and they replaced the PS. New unit arrived within the week. I know you can DL games but it was a little misleading that it only came with 186 games. I need to remove most of those anyways and add something fun. Knocked it a star for only coming with limited games.*****Product arrived in good condition. No damage to box or materials inside. Plugged PS and the LED did not light up. Found a similar power supply with 12V but different amp rating. The unit worked perfectly with the other PS but did not want to risk damage with wrong amperage. Sent several emails to vendor and reached out to Amazon help. Amazon could not assist except to replace the whole unit. I only need a replacement power supply.I will update review if vendor ever responds back with assistance.The item came with the console just like in the picture and it also had some extras. Extra buttons, and a variety of cords to hook up to different electronic systems. The settings and options are a plus. I love that it had wireless internet built in to be able to download more games or better roms than the ones you currently had on the machine when it shipped. Not all the games work smoothly. Some games are choppy and no matter how I change the options on them they just don't play smooth. There are some basketball games you need to hook up a PS4 or Xbox controller to work because the analog joystick is not enough. But 98% of all the other games play real well and are enjoyable. I would recommend this product but if you can find one with a better processor I would wait and buy that one.Oh my god let me say right away 5 out of 5 stars!! The best handheld arcade and console emulator out of China to date. This is Technically the powkiddy A19 , Android based , Pandorabox mini. That’s right it is an actual Pandora box system in a handheld. It comes with a 32 gig memory card with about 2500 different games on it . Note they are not on the System itself so you lose that card it’s a paperweight. It has WiFi so you can add more games to it from its own online portal. It has an absolutely fantastic and beautiful crisp screen! The games look great and the sound is great too and has a good amount of volume. It comes with games from multiple systems but for example one system has only two games another has three and some over a thousand. Plays MAME , famacom/nes, super famacom/ snes, Playstation 1, psp, Gb , gba. PCE, MD/ sega genesis , n64 and dreamcast. And does it well. Though n64 has audio issues. This system is awesome and I highly recommend it !Once again I am so pleased!!!!So good you can't put it down.... so many memories to share with our kid. Wife loves it too!!!