welcome to our shop! Operation is problem-free: it works right out of the box, no setup required. Insert 2 AAA batteries (not included) to perfectly replace the original remote control. QUICK RESPONSE AND DURABILITY: The fastest response on your TV is no more than 0.2 seconds, and the buttons are made of silicone. You will feel it is soft and dust-free. After long-term testing, it supports more than 150,000 clicks. Long-distance accuracy: The strongest signal of infrared technology, additional transmission of multi-angle sensing. Precise control over a distance of 10 meters/33 feet. Environmentally Friendly Material: Non-degradable and recyclable ABS material. No harm to your health. Don't worry, it won't be durable and environmentally friendly. Please allow slight errors due to manual measurement and different monitors. (Customer satisfaction is our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact us immediately. We will try our best to provide you with satisfactory after-sales service. Thank you for getting to know me. I hope this helps you. wish you a happy life.