Feature: 1. Multifunction Protection: The signal detector can detect infrared cameras, surveillance devices, eavesdropping devices, tracking devices, and locating mobile signals. 2. High Precision Detection: Utilizes advanced technology to accurately identify potential threats, ensuring individual safety and security. 3. Portable Design: Compact and lightweight design, allowing for easy carrying and ensuring safe protection can be achieved at any time and in any place. 4. Easy to Use: User friendly operation allows for comprehensive security protection without the need for professional knowledge. 5. Professional Performance: The signal detector has undergone strict testing to ensure its reliable quality, it will meet your security needs effectively. Specification: Item Type: Signal DetectorMaterial: ABSProduct Size: Approx. 131x34x15mm/5.15x1.33x0.6in Battery Type: Lithium battery , Battery Model: 4.2V, Battery Capacity: 450mAh (Shipped with built in battery) Operating Temperature: -20℃/+45℃ Laser Power: Class II 1mw Electromagnetic Wave Detection Frequency: 10M-6Ghz Detection Distance: Magnetic field: 5-20cm, electromagnetic wave: 10CM-6M . Package List: 1 x Detector1 x Charging Cable 1 x English User Manual