Please Note: 1. This product does not support IR signals with a 56K frequency or RF devices with rolling codes. 2. The supported device library is continuously updated via the cloud, ensuring your RM4 Pro remains compatible with the latest devices. Features: Extensive Compatibility: Supports over 80,000 RF and IR controlled devices, including TVs, set-top boxes, air conditioners, curtains, table lamps, fans, video recorders, DVDs, and more. App Control: Manage IR and RF appliances using the "Broadlink" app from anywhere, anytime, over the internet. The BroadLink RM4 Pro supports WiFi 2.4GHz b/g/n (Only). Voice Control: This smart universal remote is compatible with Alexa and Google Home, allowing voice control for TVs, air conditioners, motorized curtains, and more. Updated Version: The RM4 Pro is an enhancement of the RM Pro, featuring a 3x stronger 433M radio frequency emotive power. It supports an external Temperature and Humidity Sensor; connect the Broadlink HTS2 to the RM4 Pro, and the BroadLink app will display the room's temperature and humidity (extra T&H USB Cable required). Timer Feature: Set timers to turn appliances on/off at specific times. Pre-set boot times for TVs, air conditioners, and DVDs. Consolidate all IR remote controls into one app to avoid clutter. Specifications: Product Name: BroadLink RM4 Pro Function: Remote Control for IR/RF Appliances Temperature and Humidity Sensor: Supported 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: Approximately 10.5 x 9 x 3.5 cm / 4.1 x 3.5 x 1.4 in Package Weight: Approximately 150g / 5.3 oz Package List: 1 x BroadLink RM4 Pro 1 x USB Cable 1 x User Manual (English)