Wireless Motion Sensor Doorbell Alarm with 32 Melodies and 4 Volume Levels for Home Security

[WIDE RANGE OF APPLICATIONS] This compact plastic doorbell measures approximately 2.0 x 3.1 inches and is powered by 3 AAA batteries (not included). It is suitable for various locations, including houses, multi-story buildings, apartments, shops, offices, factories, and hotels. The easy installation and versatile design make it an ideal choice for both residential and commercial use. [ADVANCED MOTION DETECTION] This wireless doorbell features a highly sensitive infrared motion sensor with a 110° horizontal and 60° vertical detection angle. It automatically triggers an alarm when motion is detected, instantly alerting you to any intruders or visitors around your home, office, or shop. The motion detector provides reliable 24/7 security monitoring for your peace of mind. [Adjustable Volume Control] The doorbell offers 4 adjustable volume levels, allowing you to set the perfect sound for any situation. Simply press the volume control button to increase or decrease the volume. The maximum volume reaches 85 dB ± 5 dB, ensuring you never miss a visitor, even in noisy environments like factories or busy shops. [32 UNIQUE SOUND SELECTIONS] With 32 different built-in sounds to choose from, you can easily personalize your doorbell experience. Simply press the music selection button to browse and change the melody. Whether you prefer classic chimes, modern melodies, or alert sounds, there's a perfect option for every preference and environment. [THREE OPERATING MODES] Choose from Voice mode, Music mode, or Alarm mode to personalize your welcome experience. The doorbell can automatically greet your guests with a pleasant pre-recorded human voice or a delightful song when someone approaches. This versatile feature makes it perfect for both welcoming visitors and deterring intruders. unwanted intruders.