Self-Powered & Environmentally Friendly: Never worry about changing batteries again. This doorbell harnesses kinetic energy from each press. Crystal Clear Laminate Protection: Enjoy a sleek, durable doorbell button coated with a protective layer that resists UV rays, scratches, and water. Ultra-long Wireless Range: Stay connected across distances up to 1300ft, ensuring you never miss a visitor whether you're at home or in your office. Easy Installation: Quick setup without complicated wiring. Attach it to any surface using the included adhesive for effortless mounting. High Standard Eco-Friendly ABS Material: Built to last with quality materials that ensure a long service life and excellent touch. Elevate your home or office entryway with a self-powered doorbell that transcends the ordinary. Designed with convenience and sustainability in mind, this doorbell is the epitome of modern living. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store