Features:Wide Application: perfectly used for doors, cabinets, bikes, backpacks, storage lockers, etc.Free APP Unlock: keyless convenience helps you get rid of worrying about lost keys or forgotten combinations. (suitable for Android iOS system)3 Unlocking Methods Settable via APP: button / fingerprint / password.3 Adding Lock Methods: scan / BT / number.Shared Access: share access via scanning QR code or adding account directly.Great Flexibility: one lock can be authorized to multiple users and a user can unlock multiple locks.Easily Monitor Activity: including unlocking record and sharing record.Superior Strength Durability: made of aluminum alloy body and stainless steel latch hook.IP65 Waterproof: high waterproof grade allows outdoor application.Built-in Lithium Battery: built-in CR14250 battery, it provides about 8000-10000 unlock times, longer battery life.Battery Display: battery of padlock displays on APP.Note:1. Please scan QR code on the picture to download the APP before use.2. You can NOT input fingerprint on product directly to unlock, you can only use fingerprint unlocking method on your cellphone.