Come and see our amazing products. This anti-lost device adopts latest Bluetooth 4.0 low consumption technology, and through corresponding app to realize all the functions.You can locate your phone by pressing the button on the smart finder and it will send the Phone a ringing noise until you locate your phone. Locates where you last left the finder to the nearest street and then the alame noise will give you signal strength guiding you to find item.You can remote control the device camera or voice recording of your phone by press a button. Search free APP"cTracing" in APP store or google market to download APP. Or scan the QR code in the user manual. Pls confirm with us about the packing info, stock color and exact production time before placing your order.