# Wireless doorbell GreenBlue GB157 B — kinetic battery-free transmitter, range up to 200 m, IP44, 38 melodies, volume control

**URL:** https://aio.lv/en/product--greenblue-gb157-b--11385893
**Data updated:** 2026-01-21 13:40 (EET)
**Category:** Control Systems
**Manufacturer:** GreenBlue
**Manufacturer code:** GB157 B
**EAN:** 5902211132547
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 9.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--greenblue-gb157-b--11385893

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.89 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Wireless doorbell GreenBlue GB157 B with a kinetic, battery-free transmitter and AC/DC powered receiver. Operates on 433.92 MHz with a maximum range up to 200 m. Features 38 melodies, adjustable volume, IP44 protection for outdoor use, and includes mounting kit and installation instructions. Compact transmitter and receiver dimensions make installation flexible for homes and offices.

## Long description

Wireless doorbell GreenBlue GB157 B features a kinetic, battery-free transmitter and an AC/DC powered receiver. The system operates at 433.92 MHz and supports a maximum range of up to 200 m. The receiver has adjustable volume and offers 38 selectable melodies. The transmitter and receiver have compact dimensions that allow flexible mounting indoors or outdoors; the transmitter is rated to IP44 for protection against splashes. Package includes a mounting kit and installation instructions; batteries are not required for the transmitter.
Advantages
The kinetic transmitter requires no batteries and generates its own power when pressed, eliminating battery maintenance. A long wireless range of up to 200 m allows installation in larger homes or small workplaces. Thirty-eight melody options and adjustable volume provide configurable alerting suitable for different environments. IP44 protection on the transmitter permits outdoor placement under typical weather exposure. Compact transmitter and receiver sizes simplify mounting in limited spaces.
Suitable for
Residential front doors and entrances
Small offices and reception areas
Garages and backyard gates
Locations where battery-free operation is preferred
Key specifications
Connection type: Wireless
Operating frequency: 433.92 MHz
Maximum wireless range: up to 200 m (open area)
Transmitter power: kinetic (self-powered, battery-free)
Number of melodies: 38
Volume control: adjustable
Transmitter dimensions: 70 x 45 x 20 mm
Receiver dimensions (W×D×H): 100 x 60 x 27 mm
Ingress protection (transmitter): IP44
Receiver power supply: AC/DC (mains powered)
How to use
Mount the transmitter at the desired door or gate using the supplied mounting kit and follow the included installation instructions. Connect the receiver to mains power according to the instruction manual. Pair the transmitter and receiver if necessary, then select a melody and set the volume on the receiver. Press the transmitter button to test the doorbell and confirm wireless operation within the expected range.
Usage recommendations
Install the transmitter under shelter or in a covered location where possible to reduce direct rain exposure despite IP44 protection. For optimal range, place the receiver in a central indoor location away from large metal obstacles and dense concrete structures. Use the mounting kit provided for secure installation and follow the manual when connecting the receiver to mains power.

## FAQ

### How much does the Wireless doorbell GreenBlue GB157 B cost, and is it available for purchase?

The price is 11.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 30.06.2026 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: 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 GreenBlue 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 GreenBlue 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/11385893/66019655_large.webp