Black Shark Phone Cooler FunCooler 3, Mobile Phone Cooling Fan Lightweight Quiet Cellphone Radiator for 2.71-3.34 inches iPhone/Android Gaming

I understand you have to drag along a portable battery to plug this up to cool down. The back plate is icy cold to cool The iPhone down. Unfortunately where I go is the hottest place on earth ( I am a Death Valley national park tour guide) doesn't work for me. Not Thw neck cooling fan even with the AC. so I returned. But for any more normal hot place. You should buy it. It really does cool down phone real quick as long as you don't mind having it to plug in portable battery.

Quick thermodynamics lesson. Heat can be generated or moved...that's it. This device moves Heat via a semiconductor and then convects that Heat away with the fan.The fan air is not very hot at all. Cooler surface gets cold. Works well.If you have serious heat issues, try 20 Watt model instead of this 10 Watt model (although it will drain your battery faster)Nite does not connect to phone, you need separate source of power like a wall outlet or a battery pack.

I have been using this for about two years. It’s the only way I can use my phone for navigation without it overheating and shutting off. I fold up the extra cord and use a cord controller to hold it together.

I rely heavily on my phone during long car rides, but it overheats during hot summer days. Despite trying various options, this phone cooler made my phone warmer instead of cooler raising its temperature from 28.0C to 30.4C and beyond. Even with my Otter box case on, the cooler's plate dissipated heat in a way that caused my phone to heat up, rather than cool down. Once I removed the cooler and put my case back on, my phone's temperature returned to 27C-28C. To keep the temperature down in my car, I plan to look for some USB-powered fans, as I don't want to use the air conditioner and risk making someone's food cold during food delivery.

Definitely cools the phone. I play Pokemon Go and running the game with an autocatcher outdoors in summer time for hours really puts a strain on my phone and causes it to over heat. The noise is minimum to negligible. The only reason I knocked off a star is because the size and positioning of the device makes it awkward to hold my phone while using it; then because it has to be wired to a power source that also contributes to the akwardness. I wish it could run on its own charge, that would help.

I DON'T GAME ON MY SMARTPHONE, BUT USE THE MAP FUNCTION. ON A TRIP, THE PHONE GOT TOO HOT. THERE ARE A LOT OF COOLERS ON THE MARKET, BUT THIS ONE CAME IN AT AN AFFORDABLE PRICE FOR ME. YOU JUST PLUG IT IN TO A PORT AND IT GETS REALLY COLD. IT WILL FIT ON THE TOP OF A SMARTPHONE AND COOL IT WHEN ITS IN ITS DASH MOUNT. DIDN'T RATE BATTERY LIFE. I INTEND TO USE IT IN THE CAR ON TRIPS PLUGGED IN.

I don’t like how it doesn’t get cold like it advertises, the fan doesn’t even turn on. Yet I do feel the most subtle cool effect when I click it on, no fan though. The way it’s designed I’m not even sure what the fan does, or if it’s for show. I can’t stand things added to stuff like this just for show. The on/off switch is incredibly unsturdy. The whole unit feels cheap. All around, I wouldn’t buy this again or recommend it to anyone. It simply doesn’t need my needs, lacks in form and function, and has weird showy extra parts that make me feel lied to.

Did not keep this. Bought this for my mother but made her phone bulky.