# YoLink FlexFob, 2nd Generation

*YoLink*

> The YoLink FlexFob, 2nd Generation (YS3604F) is a four-button fob that controls YoLink devices and starts Alexa routines. It suits Alexa users, with native support through the maker's hub. Home Assistant users reach it through an integration (the maker's hub).

- Canonical page: https://smarthomecanon.com/devices/yolink-flexfob-2nd-generation
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [YoLink](https://smarthomecanon.com/brands/yolink) |
| Category | Remote |
| Status | Current[^1] |
| Type | Four-button fob[^1] |
| Power | 2 AA batteries[^1] |
| Key spec | Four buttons; each starts one Alexa routine or two IFTTT applets[^1] |
| Radio | LoRa to a YoLink hub[^1] |
| Range | Up to 2,034 ft (620 m) open air[^1] |

## Integration paths

**How the YoLink FlexFob, 2nd Generation connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Proprietary + hub](https://smarthomecanon.com/protocols/proprietary-gateway) | YoLink Hub[^1] | unknown | unknown |

**Platform support for the YoLink FlexFob, 2nd Generation**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Proprietary + hub | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^1][^2] |  |
| Proprietary + hub | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^3] |  |
| Proprietary + hub | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | com.yolink |

## Related pages

- [YoLink remotes and fobs](https://smarthomecanon.com/lines/yolink-remotes-and-fobs) (line)
- [YoLink](https://smarthomecanon.com/brands/yolink) (brand)
- [Proprietary radio with a hub](https://smarthomecanon.com/protocols/proprietary-gateway) (protocol)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: YoLink FlexFob, 2nd Generation - YoLink. https://shop.yosmart.com/products/ys3604f (manufacturer, checked 2026-10-20)
[^2]: YoLink with Amazon Alexa. https://shop.yosmart.com/pages/alexa (manufacturer, checked 2026-10-20)
[^3]: YoLink with Home Assistant. https://shop.yosmart.com/pages/home-assistant (manufacturer, checked 2026-10-20)