About this item Detect Hidden Cameras: The Hero Privacy Pen can detect hidden cameras by detecting the signal the hidden camera emits. If a signal isn’t being emitted by the hidden camera you can use the infrared detection mode to detect lenses on hidden cameras and other wireless surveillance equipment. That way you can be sure that if you’re in a changing room, a public bathroom, or a vacation rental, your most private moments won’t end up on the internet. Detect Audio Recording Devices: Through the signal detection mode, this listening device detector can detect hidden audio recording devices. Illegal audio recordings are made every day to steal trade secrets, violate people’s privacy, and are even used as blackmail. If you’re illegally recorded, your life can be turned upside down. This Hero Privacy Pen can help you prevent that. Detect GPS And Bluetooth Trackers: With the rise and popularity of mini Bluetooth and GPS trackers, many people are finding trackers have been slipped into their purses, backpacks, and vehicles without their knowledge. These people are later being, mugged, robbed, attacked, and even worse. This GPS tracker detector will make sure you’re not being tracked. Can Be Used As A High Tech Burglar Alarm: Before you go to bed in your hotel room or vacation rental, you can hang the hero privacy pen using the included lanyard on the doorknob of your room door. If the door is opened in the middle of the night by someone who’s trying to take advantage of you or do you harm, the Hero Privacy Pen will emit an extremely loud alarm alerting you to the intruder and scaring them away keeping you safe while you travel. Travel Friendly: The small, slim, discreet size of this hidden camera detector for travel makes it easy to take with you anywhere. Just put it in your pocket, a purse, or a backpack and you can take it anywhere you want to go. It’s also TSA-compliant so you can even bring it on a plane with you to make sure your privacy is intact at every step of your journey. PROPER CHARGING AND USAGE: When using the privacy pen, note that the charging light will appear faint when it's plugged in. To confirm it's charging, the pen will emit a beep once connected. Additionally, the pen cannot be powered on while it's plugged in and charging. To turn on your pen, please ensure that the unit is not plugged in.