Volume adjustment: The doorbell offers three volume levels—low, medium, and high—and features multiple pleasant ringtones that can be easily switched. Easy to install: Magnetic mounting, hole-free installation, and adhesive backing allow flexible placement to suit various needs. Application: Ideal for homes, commercial stores, shops, hotels, factories, and entrances requiring a guest notification function. Multiple ringtone options: Choose from a variety of ringtones or voice messages to personalize your alert sound. Energy saving: Designed for low power consumption to help extend battery life and support long-term use. Color: White Material: Plastic Package Contents: 1 x Voice prompter Note: The package includes only the items listed. Other products are not included. Note: Lighting effects and monitor differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.