FAQ

Power requirements vary by model. K12 requires a PD charger that supports 5V/3A. S6 uses 5V/2A. H7 uses its included 9V/3A adapter. H4 Pro and H1 Pro share the same power requirements; please follow the specifications supplied with your product. Check your model's product specifications before choosing a charger.

It depends on the model and the USB port's available output. Do not assume a laptop USB port can power every cooler: K12 requires 5V/3A, while H7 uses its 9V/3A adapter. For other models, check the product's stated power requirement and the port's output before use.

Phone coolers (S9, S6, K12) use their own power source — they do not draw power from your phone. You'll need to connect them to a USB power source separately.

The H1 MAX, H1 PRO, and H4 PRO fit 12" to 18" laptops. For direct-contact TEC cooling, align the cooling module with a metal bottom panel. The H7 Cooling Pad supports laptops up to 21".

The K12 uses magnetic attachment and works best with MagSafe-compatible cases or without a case. The S9 and S6 use a clip-on design that works with most cases up to 3mm thick.

Yes. All KryoZon phone coolers are universal and work with any smartphone regardless of brand or operating system. The K12 magnetic cooler provides the best experience with MagSafe-enabled devices.

Cooling results depend on the model and test conditions. In laboratory tests with the cooler on its own at 25°C ambient, the K12 contact surface approaches 0°C in about 20 seconds, while the S9 contact surface reaches −9°C in about 20 seconds. These are readings at the cooler’s contact surface; device temperatures depend on the workload, contact and environment.

TEC stands for Thermo-Electric Cooler. It uses the Peltier effect to actively pump heat from one side of a semiconductor chip to the other, creating a cold plate that can go below room temperature. This is fundamentally different from fans, which can only cool down to ambient temperature at best.

Most models operate at 25dB or below — quieter than a whisper. The S9 uses a fanless cooling head with a near-silent pump rated below 30 dB in lab conditions.

Order processing takes 1–3 business days. Standard transit is estimated at 6–15 business days. International orders over $35 qualify for free standard shipping. Express or priority-handling options appear at checkout where available; eligibility, charges and any delivery estimate depend on your destination and selected service. Shipping Policy

We currently ship to 83 countries and regions. Availability is confirmed at checkout. Standard delivery is 6–15 business days worldwide. Join our email list to be notified.

Once your order ships, you'll receive a shipping confirmation email with a tracking number. To view your orders, sign in to your customer account using the email address you used at checkout.

We accept returns within 30 days of delivery for unused items in original packaging. See our full Return Policy for details.

All KryoZon products include a 1-year limited warranty covering manufacturing defects and component failure under normal use. TEC module and pump failures are covered. See our full Warranty Policy.

Email support@kryozon.com with your order number, product model, and a photo or video of the issue. Most claims do not require you to ship the product back. We respond within 1-2 business days.