Purchased for my 8 year old son this Xmas. Unfortunately come the big day one of the tanks would not switch on. A quick investigation by removing a couple of screws found the culprit to be a broken solder connection at the switch itself. No problem as I have a soldering iron and we were able to be battle ready in a matter of minutes….. (not going to return a product on Xmas day and upset my son!). Good fun for a bit but a shame you can’t a) turn the volume down b) change it to just 3 lives and out rather than shot once - track disabled shot twice both tracks disabled… makes fir a very quick one sided game once shot once. Best when played around areas of cover such as sofas etc. would not take it outside as don’t think it’s durable enough