Please Note: 1. DO NOT Fit: IR signal with 56K frequency, RF devices with rolling code. 2. Supported devices library is constantly being updated by the cloud, so your RM4 pro is always compatible with newer devices. Features: CompatibilitySupport 80,000 + RF + IR controlled devices such as TV, STB, Air conditioner, curtains, table lamp, Fan, Video Recorder, DVD, etc. APP ControlControl IR and RFappliances 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 ControlSmart universal remote control compatible with Alexa, Google Home to voice control your TV, air conditioner and motor curtain, etc. Updated VersionRM4 Pro is updated from RM Pro. Enhanced 433M radio frequency with emissive power is 3-times stronger 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 HandSet 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: 0C to 50C 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)