Battery Life: 1-9 Hours Model Number: DHT691 Working Distance: about 75 Feet (without barrier ) Function1: Positioning record Function2: key finder Function3: Key tag Function4: Anti lost key tracker Function5: Localizador GPS Function6: Bluetooth tracker Function7: Localizador llaves Function8: Bluetooth locator Function9: Smart Child Tracker Function10: Pet Tracker Function11: Wallet finder Function12: Phone finder