Because I'm am currently without an audio device to use during sits, it's hard for me to know when my designated 15 or 30 minutes have elapsed. I have a computer at home but it's not mine, for one, and it's a desktop and it's located on the first floor in our office - so I can't bring it upstairs to my room where I practice.
I have an alarm clock, but I'm not looking forward to coming out of meditation with the harsh sounds of a buzzer (though I guess I could set it to sound NPR's classical music at a low volume...)
Any advice besides the alarm clock?
Thanks.

Dhammakid