the cloud, so your RM4 pro is always compatible with newer devices. 

【Compatibility】Support 80,000 + RF + IR controlled devices such as TV, STB, Air conditioner, curtains, table lamp, Fan, Video Recorder, DVD, etc. 
【APP Control】Control IR and RF appliances with "Broadlink" App via internet anywhere anytime, making life smarter and more convenient. BroadLink RM4 Pro supports WiFi 2.4GHz b/g/n(Only).
【Voice Control】Smart universal remote control compatible with Alexa, Google Home to voice control your TV, air conditioner and motor curtain, etc.
【Updated Version】RM4 Pro is updated from RM Pro. Enhanced 433M radio frequency with emissive power is 3-times ber than the previous. Supports external Temperature and Humidity Sensor, broadlink hts2 connect it to the RM4 pro, BroadLink App will show room's temperature and humidity. (Need an extra T&H USB Cable)
【Timer & All in Your Hand】Set up timers to turn on/off appliances at a specific time. You can set the boot time of TV/Air condition/DVD in advance. Turn all IR remote controllers into one APP, never get into a mess. 

Specifications: 
Product Name: BroadLink RM4 Pro 
Function: Remote Control IR/RF Appliances
Temperature and Humidity Sensor: Support
Connector: Wireless
Input Voltage: DC 5V
Input Current: 1A
Standby Power: ≤1W
Infrared Frequency: 38K
IR Remote Control Distance: 8-15m
RF Frequency: 433MHz
WiFI Frequency: 2.4GHz 802.11b/g/n
Supported OS: IOS 7.0/Android 4.0 and Above
App Name: Broadlink
Working temperature: 0°C to 50°C
Working Humidity: ≤80%

Package Information:
Package Size: Approach. 10.5 * 9 * 3.5cm / 4.1 * 3.5 * 1.4in
Package Weight: Approach. 150g / 5.3oz

Package List:
1* BroadLink RM4 Pro 
1* USB Cable
1* User Manual(English)