Key Features:

• Infrared Gravity Sensor: This is the standout feature, allowing for intuitive control using hand gestures. This likely works by the sensor detecting the proximity and movement of your hand, translating those actions into commands for the helicopter's ascent, descent, and potentially some horizontal movement.
• Remote Control: The inclusion of a traditional remote provides an alternative control method, offering more precise control for takeoff, landing, and directional movement. This is especially useful for beginners or for more controlled maneuvers.
• Durable Design: The use of lightweight yet sturdy materials is crucial for a toy helicopter, as it will likely experience bumps and crashes. This design choice aims to minimize damage and extend the lifespan of the toy.
• LED Lights: Bright and colorful LED lights add a visual appeal, making the helicopter more engaging to play with, especially in low-light conditions. They can also help with visibility.  
• Rechargeable Battery: This is a convenient and cost-effective feature, eliminating the need for constantly replacing disposable batteries. The included USB charging cable makes it easy to recharge using various power sources.  

Potential Benefits:

• Easy to Learn: The hand gesture control via the infrared sensor likely makes it very easy for beginners, especially children, to quickly grasp the basics of flight.
• Intuitive Control: Controlling movement with hand gestures can feel more natural and engaging than using traditional joystick controls.
• Versatile Control Options: Having both hand gesture control and a remote control provides flexibility in how the user wants to operate the helicopter.
• Fun for All Ages: The combination of simple gesture control and more precise remote control could make this toy appealing to a wide age range.
• Enhanced Play Experience: The LED lights add a visual element that can make playtime more exciting, particularly at night.
• Environmentally Friendly: The rechargeable battery reduces the need for disposable batteries, making it a more environmentally conscious choice.
• Convenient Charging: USB charging is a widely available and convenient method for recharging the battery.   

Overall, this "Infrared Gravity Sensor Helicopter" seems like a well-designed toy that prioritizes ease of use, durability, and fun. The hand gesture control is a particularly innovative feature that sets it apart from traditional remote-controlled helicopters.