Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Signal Toolbox - FREE 螢幕截圖

iPhone

About Signal Toolbox - FREE

This is a free version of the popular Signal Toolbox - App with adds!
Enjoy further options to use your iPhone 4 for acoustical and optical signals!

With this App, you can use it as a

- Morse device:
Enter a text and it will be translated into morse code, featuring classical sound and visible as a blinking light. The speed of the transmission can be adjusted and you can repeat your text as often as you like.

- Fully tunable siren:
Change the speed, width and hight of the siren sound to fit your needs.

- Strobe:
Create disco feeling with adjustable frequency.

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Disclaimer: Continued use of the flash
may dramatically decrease battery life