Features and specifications in this description are as the brand describes them.
Overview
The Broadlink RM4 Pro is a universal remote hub that translates infrared and radio-frequency signals, allowing control of compatible home devices through a smartphone app or voice assistant. It supports 38 kHz IR devices such as televisions, air conditioners, fans and DVD players, as well as 433 MHz fixed-code RF devices including curtain motors, projector screens and light switches. Rolling code devices and Dooya blinds are not supported.
The hub connects to a 2.4 GHz Wi-Fi network and is controlled via the BroadLink app. It is listed with RCM certification and works with Alexa, Google Assistant and IFTTT for voice control and automation routines. The manufacturer notes that manual learning is available for devices not in the cloud library, and that the device can control up to 255 appliances.
Key features
- Dual signal support: the brand says it transmits 38 kHz infrared signals and 433 MHz fixed-code RF signals, with IR range stated at up to 20 metres and RF able to pass through walls within the same distance
- Voice and app control: works with Alexa, Google Assistant and IFTTT, and the manufacturer states Siri control is available on compatible phones via the BroadLink app
- Timers and scenes: the app allows creation of multiple timers and customised automation scenes for scheduled or grouped device control
- Cloud library and learning: according to the brand, the supported device library is updated via the cloud, and manual learning mode is available for unlisted appliances
- Connectivity requirements: requires a secured 2.4 GHz Wi-Fi network; the manufacturer states 5 GHz Wi-Fi and mesh networks are not compatible