Theta Waves

**4Hz Sound Player – Simple Tone Generator**

Need a precise **4Hz audio tone** for meditation, binaural beats, sound therapy, or testing? This ultra-simple app lets you play and stop a **4Hz frequency sound** with just one tap—no ads, no distractions!

**Features:** ✅ **One-Tap Play/Stop** – Instant 4Hz tone playback. ✅ **Minimal Design** – No clutter, just two buttons. ✅ **Lightweight** – Small size, no unnecessary permissions.

Perfect for: - **Meditation & Relaxation** - **Binaural Beats Basics** - **Audio Testing & Experiments** - **Science Projects or Sleep Aid**

📢 **Note:** This app generates a **continuous 4Hz sound wave**—use responsibly at a comfortable volume.

Download now for a quick, no-frills 4Hz tone generator!