Includes all taxes
Notice:
Please not buy option "E", option "E" is only a button, it can not work like a complete doorbell.
2 kinds of doorbell to choose
1. From option "A" to "G" are 433MHz wireless doorbell, compatible with the 433MHz smart sensor in my store, not suppor wifi function.
2. Option "H" is smart wifi doorbell camera.


Version 1: Wireless Doorbell





Version 2: WiFi Doorbell Camera
Notice:
1. About the doorbell camera, Usually in standby mode, the host is in sleep state. Therefore, you cannot use the APP to actively access the camera. When the doorbell button of the host is pressed, the host will enter the working state and make a video call to the APP.
2. The cloud storage services are not free. But the doorbell can capture pictures to your mobile APP for free.
3. When you install the Kement APP, Please check your phone system settings and make sure all the permissions are enable. Including notification management in mobile phone settings, and application permission management. this is very important!
4. About the Android mobile phone, if the Kement APP can not receive the doorbell message in time when someone press the doorbell. It may be because of the Android system version is too low, or maybe the phone memory capacity is insufficient, which will cause the Kement APP fail connect to the Internet when the screen is locked. Please know it before make purchase.





Shipping:
Product will be shipped within 3 days (except holidays and public vocation) after payment received.
As to the shipping ways, we will choose the best and fastest one for you according to different countries.
All of our shipping way will have the tracking number.
If you are from Russia, please leave your full name to me,thanks!!
If you choose the DHL or Fedex,The policy of each country is different, you may need to pay additional customs fees.We can't control it. If you have any other requirements. Please leave a message to me. Each buyer has the obligation to clear the customs.If the parcel can't be cleared, it will be destroyed. This will be very big loss.To avoid the loss. Please select a suitable shipping services.thank you.
Warranty:
All the product wil not print brand logo, product with logo is not easy to pass the Customs.
We will do full test before send this product, so you will get a perfect product,
All the alarm host have Sealed label, please not tear off the label.
Not all the 433MHz accessories compatible with all the 433MHz alarm system in the market. Please ask me if have problem.
2 Years replacement warranty, buyer is responsible for return shipping costs.
Service Time:
10:00am - 22:00pm in Chinese time, I will reply you as soon as possible if you send message at other time.
Feedback:
At a very small probability. Sometimes the deliver time may delay several days, because of the bad weather or during the busy season, please do not worry. Just ask me to delay the protect time.
If you are satisfied with this product, please leave me 5 stars feedback, I will service better and better !
If you have any question, before leaving us a negative feedback, please give us the opportunity to resolve the problem . We will try our best to give you a satisfied solution way.
Payment Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are committed to providing a safe, secure, and seamless payment experience for our customers.
1. Accepted Payment Methods
We accept the following payment options:
Major Credit & Debit Cards (Visa, MasterCard, American Express)
Secure Online Payment Gateways (such as PayPal, Stripe, or other providers available at checkout)
Any additional payment methods displayed during checkout
All payments must be completed in full at the time of purchase.
2. Secure Transactions
All transactions are processed through encrypted and secure payment systems to protect your personal and financial information. We do not store your full payment details on our servers.
3. Currency
Prices are displayed in the currency indicated on the website. If you are purchasing from another country, your bank may apply currency conversion fees.
4. Order Confirmation
Once your payment has been successfully processed, you will receive an order confirmation email containing your purchase details.
5. Failed or Declined Payments
If your payment is declined, please verify your billing information or contact your bank. Orders will only be processed after successful payment confirmation.
6. Fraud Prevention
BILLIONS BIRDS reserves the right to cancel or refuse any order if fraud or unauthorised activity is suspected.
Delivery Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are dedicated to delivering your orders safely and efficiently.
1. Order Processing
All orders are processed within 1–3 business days after payment confirmation. Orders are not processed or shipped on weekends or public holidays.
2. Shipping Times
Estimated delivery times vary depending on your location:
Domestic Shipping: 3–7 business days
International Shipping: 7–15 business days
Please note that delivery times are estimates and may vary due to customs procedures, carrier delays, weather conditions, or other unforeseen circumstances.
3. Shipping Costs
Shipping fees are calculated at checkout based on your location and selected shipping method. Any customs duties, taxes, or import fees are the customer's responsibility.
4. Tracking Information
Once your order has been shipped, you will receive a confirmation email with tracking details (if available) so you can monitor your package.
5. Delivery Issues
If your order is delayed, lost, or arrives damaged, please contact us within 7 days of the expected delivery date. We will work with the shipping carrier to resolve the issue as quickly as possible.
6. Incorrect Shipping Information
Customers are responsible for providing accurate shipping details at checkout. BILLIONS BIRDS is not responsible for orders shipped to incorrect addresses provided by the customer.
Refund Policy – BILLIONS BIRDS
At BILLIONS BIRDS, customer satisfaction is our top priority. If you are not completely satisfied with your purchase, we’re here to help.
1. Return Eligibility
You may request a return within 14 days of receiving your order. To qualify for a return:
The item must be unused, unworn, and in the same condition as received.
The item must be in its original packaging.
Proof of purchase (order confirmation or receipt) is required.
Certain items may not be eligible for return, including clearance items, gift cards, or personalised/custom products.
2. Non-Refundable Items
The following items are non-refundable:
Final sale or discounted items
Gift cards
Items damaged due to misuse, negligence, or improper care
3. Return Process
To initiate a return, please contact our customer support team with your order number and reason for return. If your return is approved, you will receive instructions for returning the item.
Unless the item is defective or incorrect, customers are responsible for return shipping costs.
4. Refund Processing
Once we receive and inspect your returned item:
We will notify you of the approval or rejection of your refund.
If approved, the refund will be issued to your original payment method within 5–10 business days.
Please note that banks or payment providers may require additional time to process refunds.
5. Damaged or Incorrect Items
If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery and provide clear photos of the product and packaging. We will arrange a replacement or full refund at no additional cost.
6. Late or Missing Refunds
If you have not received your refund:
Check your bank account again.
Contact your credit card company or payment provider.
If the issue persists, don't hesitate to contact our support team for assistance.
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