This smart lock can add up to 15 groups of fingerprints (to add fingerprints on the manager cellphone). With bluetooth wireless app control, keyless unlocking. It is suitable for House Door, Backpack, Suitcase, Warehouse,Bike, Cabinet, Office. Why not have a look? Features: IP65 Waterproof: high waterproof grade allows outdoor application. 15 Groups of Fingerprints: the padlock can add up to 15 groups of fingerprints (to add fingerprints on the manager cellphone). Universally apply in various occasions. Suitable for House Door, Backpack, Suitcase, Warehouse,Bike, Cabinet, Office. Easily Monitor Activity: including unlocking record and sharing record. Bluetooth wireless app control, keyless unlocking. Free APP Unlock: keyless convenience helps you get rid of worrying about lost keys or forgotten combinations. (suitable for Android & iOS system) Easy and security sharing your codes with families or friends by app. Quick access control and easy operation. Durable and thickening alloy steel bar prevent to be sheared, security & long-life use Rustproof, built-in tamper-evident protection USB Rechargeable: built-in a polymer battery, can be easily charged by USB cable (micro USB port is on bottom), provides over 1000 continuous unlock times. Battery Display: battery of padlock displays on APP, which can remind you to charge it timely. Shared Access: share access via scanning QR code or adding account directly. Specification: Item Type: Smart Lock Material: ADC12 Aluminum Alloy + 303 Stainless Steel Color: Black Item Size: 4.8 * 8cm/1.88 * 3.14inch Package Weight: 177g/6.24oz BT Version: 4.0 BT Working Frequency: 2.4G System Requirement for iOS/Android: 4.3 and above Battery: built-in 1 * 3.7V 130mAh 501225 polymer battery Working Voltage: 3.7V Service Time: about 1 month standby time Unlock Times: over 1000 continuous unlock times Unlock Record: 1000pcs Fingerprint: 15 groups Charging Method: Micro USB, 5V 130mA (USB cable is not included) Waterproof Grade: IP65 Work Environment: Temperature: -25~80°C; Humidity: 5%~95% Package List: 1 * Bluetooth Smart Padlock 1 * English Instructions 1 * USB Cable 1 * QR code sticker Note: 1. Please scan QR code on the picture to download the APP before use. 2. You can only add fingerprint on the manager cellphone. 3. Please choose "Button" mode if you want to unlock by inputting fingerprint on padlock. 4. The product color may be slightly different from the pictures due to lighting and different monitor setting.