# Retoo E778 Wireless doorbell

**URL:** https://aio.lv/en/product--retoo-e778--12627546
**Data updated:** 2026-08-15 04:22 (EEST)
**Category:** Other goods
**Manufacturer:** Retoo
**Manufacturer code:** E778
**EAN:** 5904806162014
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.99 €
**Prices and availability valid until:** 2026-10-23 23:59
**Price without VAT (21%):** 18.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--retoo-e778--12627546

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 01.10.2026 | 1.99 EUR |
| Courier delivery to door | 01.10.2026 | 4.99 EUR |

## Summary description

The Retoo E778 is a reliable wireless doorbell designed for homes and offices. This convenient device eliminates complex wiring, offering easy installation and dependable signal transmission for everyday visitor notification. Ideal for enhancing home convenience.

## Long description

The Retoo E778 Wireless doorbell is a reliable and convenient solution designed for homes, offices, and other daily visitor notification needs. Eliminating the requirement for complex wiring, this system offers straightforward installation and dependable signal transmission to ensure you never miss a visitor again. Featuring a generous wireless operating range of up to 150 meters and a selection of 38 customizable melodies, this doorbell adapts effortlessly to your personal preferences and living space layout.
Advantages
The primary advantage of the Retoo E778 wireless doorbell is its wireless design, which completely removes the need for drilling, professional installation, or messy cables. With an impressive operating range of up to 150 meters, the signal easily reaches across different rooms or floors within typical residential and office environments. Users can choose from 38 different melodies to personalize their audio alert, and the included mounting accessories such as adhesive tape, screws, a screwdriver, and a helpful sticker ensure the device is ready for use right out of the box.
Suitable for
Residential homes and apartments
Office spaces and small businesses
Pet owners seeking a non-intrusive notification sound
Quick DIY installation without professional help
When it may not be suitable
This wireless doorbell may not be suitable for extremely large industrial facilities or properties with exceptionally thick concrete walls that severely obstruct wireless signals beyond the standard operating range. Additionally, users looking for advanced smart home integration, video monitoring, or smartphone connectivity will need a different type of system.
Key specifications
Up to 150m wireless operating range
38 selectable melodies
Wireless signal transmission
Includes mounting accessories and sticker
How to use
To begin using the Retoo E778 wireless doorbell, unpack the device and select your preferred mounting location near the entrance using either the included adhesive tape or screws. Ensure the transmitter and receiver are placed within the specified operating range of up to 150 meters. Power the units according to the included guidelines, and use the melody selection button to choose one of the 38 available tunes. Once installed and configured, the doorbell is ready to notify you whenever a visitor presses the button.
What to consider before purchase
Check the distance between the desired transmitter and receiver locations to ensure it remains within the 150m range
Consider wall materials and physical obstacles that might affect wireless signal strength
Review whether a standard audio notification meets your needs or if a smart video intercom is required
Usage recommendations
For optimal performance, mount the transmitter on a flat surface protected from direct heavy rainfall, and ensure the receiver is positioned centrally in your home or office to hear the 38 available melodies clearly from any room.

## FAQ

### How much does the Retoo E778 Wireless Doorbell cost, and is it available for purchase?

The price is 21.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Monday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Retoo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Retoo service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12627546/69335807_large.webp