no app Do not need to worry about forgetting the password. Do not need keys and mobile phones with you. Do not need multiple steps to open the lock. Easy touch solve any trouble -Your finger is your key, and only takes 1 sec to unlock. Keyless Smart Fingerprint lock is equipped with advanced fingerprint technology with automatic recognition, safety, and convenience. -Cable Diameter:0.4″, Length: 39.4″ (The longer bicycle chain recommended for motorcycle, two wheels or multi-bike locking). -Waterproof (IP66)，Seamless security and added protection are yours in all weather conditions, anywhere you go. -The best gift for outdoor sports enthusiasts
No Bluetooth Connection and App Registration Aluminum Alloy Body, IP66 Waterproof, Low Battery Warning, Rechargeable Battery, 2 Year Warranty.
1. Product needs to be fully charged prior to using it for the first time. 2. Please read the user manual carefully before using. 3.Before Set up, Any fingerprint can unlock the smart padlock. 4.The fingerprints entered for the first time and the second time are the administrator fingerprints.all other fingerprints need to be authorized by the administrator. 5.When you unlock, the red and blue indicator flashes alternately, indicating low power consumption. you need to charge your fingerprint padlock in time. 6 .Please do not infuse the fingerprint lock in the water for a long time.