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Echo Sound is an application intended to honor the legendary Keychain 80-90, by the name of "Echo Keyller" (named in some cases with less popular name "Macho Men").
Echo Sound tries to give a nostalgic look at this toy, while still being a breath of air freso in modern times.
Echo Sound combines the simplicity of the 80 with the most current sophistication.
You can add your own sounds to the application from the menu. Record a sound and play it anytime.