Answers about HZANA SOL: how the frequencies and soundscapes work, headphone listening, battery life, charging, shipping, and care.
The lowest settings (4–7.83 Hz) are woven into each soundscape as a gentle rhythmic pulse — every sound plays fully within the speaker's audible range. Through headphones, each ear receives its own tone.
No. HZANA is made to fill a room on its own. The three lowest settings (4, 6, and 7.83 Hz) are best experienced through headphones, where each ear receives its own tone — everything else is at home on the speaker.
No — by design. There is no Bluetooth, no Wi-Fi, and no wireless signal. Nothing to pair, nothing transmitting in your space. Turn the dial and begin.
There is no app, no account, and no subscription. Everything HZANA does lives on the device itself.
Ten frequencies, each with four original soundscapes — forty in all, built from ambient texture, nature sounds, live instrumentation, and layers of white and brown noise. Explore the sounds.
Between 12 and 80 hours per charge, depending on volume and light settings. Charging is USB-C (cable included) and takes about six hours.
Yes. Plug in and play at the same time.
HZANA is made for every stage of life. Its light has been tested to IEC 62471 and classified in the lowest risk group (Exempt), volume adjusts across thirty levels, and there is no wireless signal. As with any electronic device, place it out of a child's reach and follow the safety guidelines in the user manual.
The HZ-01 SOL, a braided USB-C to USB-C cable (150 cm), a quick-start guide, and the user manual. A wall adapter is not included — any standard USB-C adapter (5V/1A) works.
Yes. Smart Memory returns you to your last sound and light settings each time you power on.
The first release of one hundred numbered units ships by September 22. The second release arrives by Black Friday — the waitlist is open at hzana.com.
The United States and Canada.
You may return the HZ-01 SOL within 30 days of delivery, in its original packaging, for a refund of the purchase price. Full details on our Returns page.