Combination: The locking and unlocking method is done by combining the numbers on the padlock. You don't need to carry keys with you, but you definitely need to remember the combination.
with Key: The locking and unlocking method is done with a key, it is the most common and familiar way of use.
With Fingerprint: The locking and unlocking method is done through fingerprint recognition, essentially making "you" the key and increasing your security.
with Bluetooth: The locking and unlocking process is done through Bluetooth, essentially making your mobile phone the "key" and increasing your security.
with Card: The locking and unlocking method is done with a card, thus increasing the security of the lock, as it is more difficult to copy than a traditional key.
Certification TSA: This certification allows security authorities (e.g. airports) to unlock and inspect your luggage without damaging it.
Sea: Designed for high resistance against corrosion. They are ideal for boats, ships, outdoor storage, and anywhere the lock will be exposed to weather conditions.