Detailed Answer
LIDER LD series button life is 10 million presses (industrial-grade standard). Materials: silicone buttons + gold-plated contacts (wear-resistant and conductive). Testing: continuous pressing at normal/high/low temperatures. At 500 presses/day, 10 million presses equals about 55 years — actual unit life is affected by the battery, housing, etc., but the buttons themselves are essentially maintenance-free.
| Life | 10 million presses |
| Materials | Silicone + gold-plated |
| Testing | High/low temp pressing |
Note:When buttons feel stiff, just replace the button caps.