SierraTeck Motion Activated Sound Player, Long Playback Time, Recordable – Independent Living, Point of Sale Advertising, Door Greeter, Entry Alert

Our unit worked just great for a month until the battery ran out, and then it didn't seem to recharge. Customer service was easy to contact, responded promptly, and immediately shipped a new unit out to me. After getting the new unit, I discovered that the problem wasn't with the device at all, but just a corrupted SD card.Conclusions: 1. If you have ANY problem whatsoever, including an apparent dead battery (no lights or sound even when pushing the buttons), try removing the SD card if installed. Some card faults just lock up the device, but it will work fine with no card installed (using the default sounds) or with a new card. 2. Even if that's not the issue, SierraTeck will have your back. I've had bad experiences with customer support from other small electronics brands, but these guys were great, following up with the support request even over a weekend. I would buy with confidence from them again. (I'm not in any way affiliated with them, just impressed.)The device itself was perfect for what I wanted--- just save .mp3 or .wav files on a memory card, and set it to either play them at random, step through in sequence (one file per motion activation event), or always play a particular file (until you select a different one). The max volume is VERY loud (but easily adjustable with a dial on the unit), motion detection works well, and you can swivel the device 360 degrees around its mounting post to aim the detector wherever you want.

My primary use for this device is for holiday greetings at my front door. Updating the messages is simple enough, just copy MP3 files to the included SD card and put in the device. It has a battery pack in it that allows for it to playback without any wired connections. Not sure how long a charge would last if there is heavy traffic. It comes with a charger and cable that can be plugged in while it is installed, eliminating the concern about battery life. The volume is very good, loud!. Sound loudness can be adjusted with a thumb-wheel. The unit feels a bit cheaply made, especially given the price, but so far it performs well and is exactly what I wanted.

As described. Only four stars because I had to choose between having a microphone to record messages, but battery powered vs. No microphone but plugged in outlet, which means downloading mp4 to mp3 convert app. I don't remember that being mentioned anywhere, so that was irksome.This was the most reasonably priced with good reviews I could find. I would've paid a little more for a microphone AND outlet option. But, this works well, is easy to operate and set up. Received several months ago and has been very reliable.

Great device, super easy to use and it works. Several volume settings.

I don’t know how the motion detection or sound quality is (all I heard was a gravelly growl when I turned it on). But, it’s a complete non-starter for me. Sorry, but the incompatibility with Apple OS/iOS is just lame in this day and age of cross-platform development standards.