This DC 12V wired doorbell ensures reliable security access control with its sturdy and durable design, built to last for years of dependable service. Featuring a powerful 90dB built-in loudspeaker, this doorbell delivers a clear and loud ding-dong sound, ensuring you never a visitor. Crafted from premium fireproof ABS shell material, this doorbell offers enhanced safety and durability, making it a trustworthy choice for any home. With versatile installation options, including wall-mounting or double-sided adhesive paste, this DC 12V wired doorbell is quick and easy to set up. Eco-friendly and cost-efficient, this doorbell operates on access control power supply, eliminating the need for battery replacements and saving you money., Manufacturer: Zerodis