For a geocache I was looking for a device that can play an mp3 battery powered alarm to build a station (under roof, not outdoor), where at a particular time surprisingly a sound is played, the solution contains a note. There are endless battery-operated alarm clock and endless alarm clock that can wake up to an MP3 file, but only a very few who can do both. This alarm clock here these functions contains all and is also recharged via an external mini USB port so that you can support the perhaps too weak for a long-term use Li-ion battery quite simply with an external battery pack to also maturities of 6 months or hinzukriegen more. Toll also that the LCD display backlight turns off after about 2 minutes, which saves a lot of electricity during operation!
The radio I do not need personally, but it still sounds remarkably well in the face of the invisible antenna and receives a lot of channels, which are also stored.
The English instructions are indeed badly translated, but of course with a little thought enough to set everything to.
I'm curious how long the device in practice runs with external batteries and will evtl.hier report back.
