🎚️ Choose a preset or set your own tone

Custom frequency

1000

Hz

200 Hz (low)20,000 Hz (max most speakers can play)

Full human hearing

Fades for most adults

Mostly dog-only

200 Hz20,000 Hz

Tone pattern

Steady tone

Pulsed whistle

Frequency sweep

⚠️ Start at low volume, keep your phone speaker away from your dog's ears, and stop immediately if your dog seems startled, distressed, or overly agitated. Not all dogs respond the same way to high-pitched tones.

Most phone and laptop speakers cannot reliably reproduce true ultrasonic sound (above ~20,000 Hz), regardless of what an app claims. This tool is honest about that limit and instead uses the highest frequencies your device can actually play, which fall in the upper range of human hearing but well within a dog's hearing range (dogs generally hear roughly 67 Hz–45,000 Hz).

🏆 Why this whistle app is different

✅Honest about speaker limits — most competing "ultrasonic dog whistle" apps claim frequencies your phone physically cannot produce. This one explains the real limit and works within it.
🎯Training-purpose presets, not just one generic tone — recall, high-attention, and stop/interrupt tones are commonly used for different training goals.
📡Built-in speaker range test — sweeps through frequencies so you can hear (or not hear) exactly where your specific device's output starts to fade.
📊Visual hearing-range guide shows where your chosen frequency sits relative to human vs. dog hearing, so you understand what's actually happening.
🎛️Full manual control — custom frequency slider and 3 tone patterns (steady, pulsed, sweep), not locked to one preset sound.
🔒No app download, no sign-up — runs instantly using your browser's built-in audio engine.

❓ Frequently asked questions

Can a phone actually produce an ultrasonic dog whistle?

Not reliably. Most phone and laptop speakers are designed for human hearing and roll off sharply above roughly 20,000 Hz, which is right at the edge of true ultrasonic range — so genuinely silent, ultrasonic tones are usually beyond what everyday speakers can produce.

What frequency can dogs hear that humans can't?

Dogs can typically hear sounds up to around 45,000 Hz, well beyond the roughly 20,000 Hz upper limit of human hearing, which is why even frequencies that sound faint or silent to people can still be quite noticeable to a dog.

Is it safe to use a dog whistle tone on my phone?

Generally yes at reasonable volume and distance, but high-pitched sounds can startle or stress some dogs, especially noise-sensitive ones, so it's best to start quiet, watch your dog's reaction, and stop if they seem distressed.

🐕‍🦺🔊 Dog Whistle App