I remember reading in the news a few years ago about a method of tracking a partner/spouse for suspicions of infidelity. You had to have access to their phone, you send a text from it to a certain number, and then it would be 'active', and you were able to track it from your own phone or computer. I can't remember the specifics, but it sounded very interesting.
I think this is the best way to go. Do this to a cheap, small mobile. Take it apart, wrap it in a condom, stuff it down the seat tube (I'm sure you can get reception inside a seat tube). Without the backlit screen and the speaker, the battery might last for weeks. When it does need to be recharged, take it out and plug it in, just like you would a normally. Especially if you can get it on a 'standby' mode.
I remember reading in the news a few years ago about a method of tracking a partner/spouse for suspicions of infidelity. You had to have access to their phone, you send a text from it to a certain number, and then it would be 'active', and you were able to track it from your own phone or computer. I can't remember the specifics, but it sounded very interesting.
I think this is the best way to go. Do this to a cheap, small mobile. Take it apart, wrap it in a condom, stuff it down the seat tube (I'm sure you can get reception inside a seat tube). Without the backlit screen and the speaker, the battery might last for weeks. When it does need to be recharged, take it out and plug it in, just like you would a normally. Especially if you can get it on a 'standby' mode.