The iRobot Roomba i4 Wi-Fi Connected Robot Vacuum is a model from the iRobot Roomba series of robot vacuums. Please note that newer models might have been released since then, so it's always a good idea to check for the latest information on the official iRobot website or from other reliable sources.

Key features and characteristics of the iRobot Roomba i4 may include:

1. Wi-Fi Connectivity: The Roomba i4 can connect to your home's Wi-Fi network, allowing you to control it remotely using a smartphone app or through voice commands with compatible virtual assistants like Amazon Alexa or Google Assistant.

2. Advanced Navigation: The robot vacuum uses iRobot's intelligent navigation system to efficiently clean your floors, avoiding obstacles and furniture while systematically mapping and cleaning each area.

3. Multi-Surface Cleaning: The Roomba i4 is designed to work on various floor types, including hardwood, tile, carpet, and rugs, adapting its cleaning mode to provide optimal performance on different surfaces.

4. Powerful Cleaning System: It typically comes equipped with a strong suction power and dual multi-surface brushes that work together to lift and remove dirt, dust, pet hair, and debris from your floors.

5. Dirt Detect Technology: The robot vacuum may have sensors that detect high-traffic areas and concentrated dirt, prompting it to focus on those spots for a more thorough cleaning.

6. Auto-Resume Feature: If the robot vacuum's battery runs low during cleaning, it can automatically return to its charging dock to recharge. After recharging, it may resume cleaning from where it left off.

7. Virtual Wall Barriers: Some Roomba models come with virtual wall barriers that use infrared signals to create no-go zones or boundaries for the robot, preventing it from entering specific areas you want to keep off-limits.

8. Washable Dustbin: The Roomba i4 typically has a washable dustbin, making it easy to clean and maintain the vacuum after use.

Remember that features and specifications may vary depending on the specific model and regional availability. When considering a robot vacuum, it's essential to research and compare different models to find the one that best suits your cleaning needs and budget.