This is perfect for a stroller fan - the clip is big enough and strong enough to clip in multiple different places. There are three speeds (press the power button to change speed; hold down the power button to turn off) ranging from very light breeze to pretty solid wind, and it's nearly silent. I could see taking this to my gym because the treadmill doesn't have a fan, or having on a work desk. Charges with microUSB. Highly recommended!strong airflow. Portable. May use in car.UsbC charging ,charges fast.Charges last hours I left it on in my car during a 8hour work shift and came out to it still blowing no issues with unit getting hot or anything... use it in the car and for my kids on hot days.Good Cool FanBattery life is as advertised. Fairly quiet overall. I’ve fallen in love with the ‘wind’ setting for bedtime on trips. Does take a few hours to charge back up but it’s good for all night and then some. Will probably buy another one soon.Works just fine but does seem to be a used product. The power cord came on a ziplock bag. Not really a problem but don’t sell a used product as new.I use this not only for the stroller but around the house as well. I highly recommend it!!!Bought this for the baby's stroller, but house AC is out and have been using it to keep baby cool through the night. It's quiet, works wonderful, but the battery life does not last leaving me to charge and use the fan at the same time.This fan is great and I love that you can plug it in to charge. Unfortunately my kids broke the charger because they were swiveling the fan while it was plugged in I wish the charging port was in a different spot to prevent this.So it looks great- just what I wanted: lightweight with tiny slats so pet paws can’t get nipped. One problem- for how many days do you need to charge the thing up??? It has a red flashing light whilst not enough power to run. Fine. I plug it in, and wait till the light stops flashing. Fine. But it NEVER turns green so that it will actually work!I have checked all instructions and packaging to see if I needed to fit the battery- absolutely nothing says that. It looks like the battery is pre-fitted. It has been on charge in total for over 20 hours. Shall I admit defeat? By the time it works, the heatwave will be over. GrrBigger and more powerful than expected. Battery life doesn't last as long as I'd hoped but very easy to charge when not in use, although last longer on the lower setting which is still a good strength of air flow.Bought for my baby daughter who doesn't like to be hot. Clips onto her pram, cot, rocker chair car seat headrest. Definitely does what I need it to do.Would definitely buy again.This fan is rubbish so please don't buy it. It's very overpriced & is not capable of cooling anything down.Really useful for the extreme weather we have had. Takes quite a while to charge on the downside, but really throws out the air for a small fan. Pleased I bought it. Adjusts to any angle on a desk or side table.