Come and see our amazing products! Key finder uses BT 4.0 technology to connect Android, iOS, Pad and other smart phones. Show the lost car key, luggage, wallet, dogs, cats distance from you on the APP to let you find them accurately.When you press the remote button, the receiver sounds ""beeps"" you can hear voices from smart tracker within 30-49 ft. When the key tracker is connected to the mobile phone via Bluetooth, the anti-lost device can be used as a remote control button to control the photo shutter of the mobile phone, and it is easy to press, leaving a beautiful moment.Key finder smart tracker is compact size, light weight and easy to carry like a key chain on your kids schoolbag or hang on pet collar, real-time viewing locator effectively avoids your kids, pets are lost. Pls confirm with us about the packing info, stock color and exact production time before placing your order