Whistle - Loud Whistle Sound
Your phone becomes a whistle — 8 loud sounds and an SOS pattern, hold to sound.
About Whistle - Loud Whistle Sound
Need a referee whistle right now? Just take out your phone and hold the button.
Whistle turns your phone into a loud, responsive whistle:
it blows only while you hold, and stops the instant you release -
just like the real thing.
★ FEATURES
• Press-and-hold blowing with instant stop
• 8 whistle sounds: 2 included (Classic Sports, Bright Police) + 6 PRO
(Deep Locomotive, Coach Trill, Samba Party, Bosun Pipe, Rescue Whistle, Air Horn)
• TRIPLE blast and SOS emergency patterns
• Neon sound-wave visualizer reacting to your blow
• Volume control and favorites
• Korean / English
★ PRO SOUNDS
Unlock the deep locomotive horn forever with a one-time purchase,
or open PRO for 24 hours by watching a short ad.
★ GREAT FOR
Referees and coaches, dog training, attention calls,
safety signaling and playing with kids.
★ NOTE
In a real emergency, always use official emergency services first.
Mind your surroundings and hearing at high volume.
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