Interval Timer
http://electronicsusa.com/ Up close look at the Gymboss Timer with two countdown interval timers in operation. The short time intervals are obviously for dem...
Timer for interval training.
Press [RESET] to change timer setting.
Press menu button and choose [Sound] to select beep sound.
Beep sound continues
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Press [RESET] to change timer setting.
Press menu button and choose [Sound] to select beep sound.
Beep sound continues
1k - 5k
13 years ago
