In Pictures: 10 cool Bluetooth devices for your iP...
BlueTipz ice-fishing transmitter
If you enjoy ice fishing, you know it's critical to feel when a fish brushes the fishing pole, but that's hard to do in winter weather when you're bundled up. Deep Freeze's $40 BlueTipz Transmitter does the sensing for you, alerting your iOS or Android smartphone when it perceives a fish. It also has a bright light you can turn on to see what's below the ice.
In Pictures: 10 cool Bluetooth devices for your iPhone or Android