4x Smart Search Key Tracker Bluetooth Locator Features: Connects to Bluetooth-enabled mobile phones for two-way search and supports connection to up to 6 anti-lost devices simultaneously. Alarm reminder helps prevent loss. Includes "Do Not Disturb" functionality. Allows control of mobile phone recording via the anti-loss device. Product Specifications: Material: ABS Battery: CR2032 Net Weight: 9g Working Distance: 10 meters Bluetooth Version: Bluetooth 4.0 Size: 50x30x10mm Color Options: Black, White, Green, Pink, Red, Blue Application: Compatible with iSearching and Kindelf apps Suitable for use with wallets, keys, children, pets, bags, and other personal items Compatible Devices: Smartphones with Bluetooth 4.0 or higher, iOS 12.0 and above, Android 10.0 and above Usage Instructions: Download the iSearching or Kindelf app: For Apple iPhone, search and download from the App Store. For Android phones, download from Google Play Store (not available for mainland China users). After installation, enable "Auto-start" and necessary permissions in settings. Power On: Press and hold the device button for approximately 3 seconds until two beeps are heard. Enable Bluetooth on your phone and open the app to search for devices (do not pair via phone Bluetooth settings). To add a new device, tap the '+' button in the upper right corner of the app. Additional Features: Two-Way Alarm: Both the phone and tracker sound an alarm when the distance exceeds the set range (up to 10 meters). Find Your Phone: Double-click the tracker button to trigger the phone alarm. Location History: View recent locations and loss history by tapping the "Location" button in the app. Camera Control: Use the "Camera" button in the app to remotely activate the phones camera and take photos. Device Settings: Tap the arrow next to the "Alarm" button to access settings. Customize device name, alarm tone, volume, and other options. It is recommended to keep the default anti-loss distance. Usage Notes: Ensure the app is running in the background with Bluetooth connected. The tracker may sound an alarm if the connection is lost. Press the button or reopen the app to stop the alert. After use, press and hold the button for 5 seconds to disconnect. If experiencing connection issues, swipe left to remove the saved connection and tap "+" to reset and reconnect.