【High-Frequency Alarm】Equipped with a high-frequency oscillation cavity and a 27MM large piezoelectric ceramic, providing a 120-decibel high-frequency alarm to effectively deter illegal intrusions. 【Advanced Detection Technology】Utilizing strong wave infrared scanning technology, it accurately detects pinhole/hidden cameras, infrared/non-infrared cameras, and wired/wireless cameras. 【Multi-functional Design】One-button control for multiple functions, including anti-wolf alarm, camera detection, vibration alarm, and flashlight, offering practical features for various scenarios. 【Portable and Long-lasting】Compact design with a built-in rechargeable battery and Type-C fast charging port, convenient for carrying and using on-the-go. 【24/7 Personal Security】Provides round-the-clock protection, suitable for various settings such as hotels, travel, tourism, and other scenarios where privacy is a concern. Specifications: Model: G110 Alarm Type: Audio and Visual Alarm Detection Frequency: 50MHz Working Voltage: 3.7V Product Dimensions: 40*18*73mm Applicable Scenarios: Hotel stays, travel, couple outings, outdoor night activities