General description The Smart Fingerprint Lock Graffiti Bluetooth Wooden Door Key is a multifunctional ball-shaped indoor fingerprint lock that offers three unlocking methods: fingerprint, Tuya Bluetooth, and key unlocking. It features a 400mAh lithium battery and an emergency key for unlocking when the battery is low or the fingerprint is invalid. The lock is designed for stability and ease of use, making it a reliable choice for securing your home. Technical specifications Model: K10 Power Supply: 400mAh Lithium Battery, 3.7V Type-C Temporary Power Supply and Charging: 5V2A Universal Lock Body: Single Tongue Lock (60-70 Adjustable) Unlocking Methods: Key, Tuya Bluetooth App, Fingerprint Low Battery Alarm Function: 3.3±0.2V (Low Voltage Alarm) Fingerprint Specifications: Semiconductor Fingerprint + LED Breathing Light (20 fingerprints) Fingerprint Pixels: 140 x 96 Fingerprint Resolution: 508 DPI Standby Quiescent Current Power Consumption: ≤90µA Average Working Current: ≤350mA Life