1、PURPOSE: Smart Item Locator can connect user's easily lost items and valuables together and works with smartphones to prevent loss. Compatible with for iOS and for Android. 2、CAMERA FUNCTION: Remote control for smartphone camera, wireless Selfie for self portrait. Bluetooth remote, one click photo, click the anti lost device to take a photo. 3、REAL TIME POSITIONING: Bluetooth anti lost device to prevent lost, with "wrist strap" accessories, real time positioning of children and the elderly to prevent lost. 4、POWERFUL FUNCTIONS: The Bluetooth locator supports one key finding objects, light and portable, two way search, accurate positioning, one key photography, and disconnection reminder. 5、ANTI LOST FUNCTION: The smart two way bluetooth alarm can provide the last seen anti lost drop location on the map to help you retrieve the item. Item Type: Anti Lost Device Model: W8 Material: Silicone, ABS Bluetooth: 4.0 Support System: for iOS7.0 or Above, for Android 5.0 or Above, Requires Bluetooth 4.0 Standard Supports Bluetooth Low Energy Technology (BLE) Support 2 Way Alarm Frequency Range: 2.42~2.480GHz Receive Sensitivity: -94dBm Working Voltage: 2.7～3.2V Working Environment: -20～70℃ Input: 5V/1A Output: 34Hz-70KHz Built in Battery: 100mAh Lithium ion Battery (Battery Included) Charging Time: About 30 Minutes Duration: 150 Hours 1 x Item Locator 1 x Wrist Strap 1 x Lanyard 1 x Charging Cable 1 x Manual