|Size||4 x 7 cm (1.6 x 2.8 in)|
|Battery Life||1 year|
|Warranty (Months)||12 months|
I think it would be moderately useful in finding a lost item. It would take some guessing out of where exactly you dropped something, as long as it was a stationary place. If your wallet fell out in a bus or taxi, man, good luck.
No questions for the moment.