The connection is too sensitive.
590334
This constantly disconnects from my Mac, with just the slightest touch. Using it in the car drives me nuts because just the bouncing of the road will disconnect it at times.

The hard drive performs fine.
No issues with data loss.
It's small and looks attractive.

Due to my issues with losing connection, I would buy a different drive if I could do it again.
1439202
It is quite sensitive so you can't use it when cars are parked next to you. If anyone walks next to the vehicle I know it!
1789360
The light is brighter than I expected which is good. The sensor is too sensitive and moths set it off. I don't think it can be adjusted.  Overll satisfied.
2573401
It works but it's way, way, too sensitive to movement.  No way to slow it down.
979558
Shortwave band has poor sensitivity. The radio powers itself on when carried in soft case. Everything else is fine.
3740456
When it works it is fine but I have to disconnect it and reconnect it every time I need to transfer photos. Makes it a pain in the rear to use.
4555420
This products has a great premise but is too sensitive. It beeps when my dog shakes her head, scrambled across the hardwood, and sometimes for no reason. The first time I put it on my dog it started beeping for no reason and wouldn't stop, then started vibrating constantly. My dog was running around trying to escape what was attacking her. It took a while to catch her, and the collar was still vibrating when I removed it. I used the sensitivity settings to turn the sensitivity up and tried it again later. I walked by my dog and got my toe stuck in her collar, and it beeped continually and vibrated again. She didn't bark at all that night (we had company) because she cowered at my legs in terror for hours. Additionally, the prongs dig into my dog's neck, preventing her from laying down comfortably, or getting a big doggy hug. I don't see why the prongs are needed. I had a beeping collar years ago for our other dog and it did not have the prongs.
1618884
It has many desirable features, like being able to connect to a smart phone for warnings, etc. It appears to be sensitive to radar devices, and to commercial alarm systems.  The biggest drawback is that I receive too many meanless warnings.
3089381
Device works as expected, but the Sensor sensitivity is so high that anything passing in front will trigger,  from several feet away to up close.  Dispenser spontaneously triggers, causing candy spills when no one is present, despite cleaning sensor per manufacturer's suggestions.  there are no options for contacting the manufacturer for a replacement.
3810607
The way this device connects to Bluetooth is so troubling and frustrating it ruins the experience before you even get started.  There has to be a way to improve this connection process.
1080613
The mouse is so sensitive, the cursor keeps moving when I'm holding the mouse even slightly. I finally stopped using it and went back to my old mouse.
1151587
Would not make connection tight enough to last while driving.
3159841
It is a good unit, a basic unit, but it is too sensitive. Use it in the back of the house away from the kitchen, and use a better, more robust (calibrated) unit near the kitchen.
3657725
Much too sensitive. Activated too easily. Also fragile. Broke very easily.
3082281
cute, different, just a little too sensitive to the touch, and a little difficult to understand set up
4069092
Micro switch too sensitive but otherwise a good buy.
2280132
When it works it is great and it works most of the time but for some reason sometimes it just does not want to connect and that is very frustrating.