Cookie Policy

Effective date: November 2, 2026
Last updated: November 2, 2026

This Cookie Policy explains how Haisen Innovations Limited ("Haisen," "we," or "us") uses cookies and similar technologies on haisenaudio.com (the "Website"). It should be read together with our Privacy Policy.

1. What cookies and similar technologies are

Cookies are small text files that a website stores in your browser. Similar technologies include local storage and session storage, which let a website save small amounts of data in your browser. In this policy, "cookies" covers all of these.

First-party cookies are set by haisenaudio.com.
Third-party cookies are set by another provider, such as Google.
Session cookies are deleted when you close your browser or tab. Persistent cookies stay until they expire or you delete them.

2. Categories we use

We use only two categories. We do not use advertising or cross-site tracking cookies.

2.1 Strictly necessary

These are needed to run and secure the Website, protect our forms from spam, and remember your cookie choices. They do not require your consent, and you cannot turn them off in our cookie banner. You can block them in your browser, but parts of the Website, such as our inquiry forms, may then not work.

2.2 Analytics (optional)

These help us understand how visitors use the Website, which pages lead to inquiries, and where our visitors come from. We use Google Analytics 4 and two first-party session storage items for this. They are set only if you accept analytics cookies. Google Signals and ad personalization are turned off.

We also use Cloudflare Web Analytics, which measures page views and page speed without cookies and without identifying you. It therefore runs without a consent choice.

3. Cookies and storage items on the Website

3.1 Strictly necessary

Name	Provider	Type	Purpose	Duration
`cc_cookie`	Haisen (first party)	Cookie	Stores your cookie choices, the date you made them, and the policy version, so we do not ask again on every page	182 days
Cloudflare Turnstile	Cloudflare (challenges.cloudflare.com)	Runs in a frame served by challenges.cloudflare.com	Checks that a form is being submitted by a person, not a bot. Turnstile does not set cookies on haisenaudio.com; Cloudflare may use strictly necessary storage within its own frame	Set by Cloudflare within its frame
`cf_clearance`	Cloudflare	Cookie	Set only if you are shown a Cloudflare security challenge. Shows that your browser passed the challenge, so you are not challenged again	30 minutes
`_cfuvid`	Cloudflare	Cookie	Set only when Cloudflare rate limiting applies. Helps apply rate limits fairly to visitors who share an IP address	Session
`haisen.inquiry.draft.*`	Haisen (first party)	Session storage	Saves what you have entered in an inquiry form, so you do not lose it if you reload the page. It is deleted when you submit the form	Until you close the tab
`haisen.inquiry.last`	Haisen (first party)	Session storage	Passes your submitted inquiry to our thank-you page, so that you can add details to the same inquiry	Until you close the tab

3.2 Analytics (set only with your consent)

Name	Provider	Type	Purpose	Duration
`_ga`	Google (Google Analytics 4), set on haisenaudio.com	Cookie	Distinguishes visitors to produce usage statistics	2 years
`_ga_<measurement ID>`	Google (Google Analytics 4), set on haisenaudio.com	Cookie	Keeps session state for usage statistics	2 years
`haisen.touch`	Haisen (first party)	Session storage	Keeps the first page of your visit (landing page), the external page that brought you to it (without any query string or fragment), campaign parameters (such as `utm_source`), and ad click identifiers (such as `gclid`) for your current visit only, so they can be sent with an inquiry you submit. It is not used to track you across visits. Without your consent, nothing is stored, and an inquiry includes only: the address of the page on which you submit it (without any query string); any campaign parameters and ad click identifiers in that address; and the address of the page you came from (without any query string or fragment), which may be another page of the Website	Until you close the tab
`haisen.lead.sent.<inquiry reference>`	Haisen (first party)	Session storage	Notes that your submitted inquiry has already been counted in Google Analytics, so that reloading the thank-you page does not count it twice. It contains only the inquiry reference number	Until you close the tab

Google Analytics data is kept for 14 months. For more about how Google uses data, see Google's page "How Google uses information from sites or apps that use our services" (policies.google.com/technologies/partner-sites).

3.3 Admin area

Our staff sign in from Hong Kong to a separate admin area at admin.haisenaudio.com. Cookies used there (for example, Cloudflare Access and admin sign-in cookies) apply only to Haisen staff and are not set for Website visitors.

4. Google Consent Mode v2

We use Google Consent Mode v2 to pass your choices to Google:

Before you make a choice, all four consent signals — analytics_storage, ad_storage, ad_user_data, and ad_personalization — are set to denied.
Google Analytics is not loaded at all until you accept analytics cookies. No Google Analytics cookies are set, and no Google Analytics data is sent, while consent is denied.
If you accept analytics cookies, analytics_storage changes to granted and Google Analytics loads.
Because we do not use Google advertising features, ad_storage, ad_user_data, and ad_personalization remain denied. If we ever enable advertising features, we will update this policy and our cookie banner first.

5. Your choices

5.1 The cookie banner

When you first visit the Website, a banner lets you Accept all, Reject all, or open Settings to choose by category. "Accept all" and "Reject all" are equally prominent. Optional cookies stay off for all visitors worldwide until you choose.

5.2 Changing your mind

You can change or withdraw your consent at any time by selecting Cookie settings in the footer of any page. Your new choice applies from that moment. When you withdraw consent, we delete the Google Analytics cookies set on haisenaudio.com and the haisen.touch item.

5.3 Browser settings

Most browsers let you view, block, and delete cookies. If you block strictly necessary cookies, parts of the Website, including our inquiry forms, may not work. You can also install the Google Analytics opt-out browser add-on (tools.google.com/dlpage/gaoptout).

Global Privacy Control. If your browser sends a Global Privacy Control (GPC) signal, we treat it as a rejection of analytics cookies, and Google Analytics does not load in that browser.

6. Changes to this policy

We will update this policy when we add, remove, or change cookies, and change the "Last updated" date. If we add a new category of optional cookies, we will ask for your consent again.

7. Contact us

Questions about cookies or your personal data: privacy@haisenaudio.com Haisen Innovations Limited, Rm 102, 1/F, The Cloud, 111 Tung Chau Street, Tai Kok Tsui, Kowloon, Hong Kong

Analytics cookies: not allowed.