Sturdy Structure- The lock body made of aluminum alloy and the lock beam is made of stainless steel for superior cut resistance,protect your cabinet or your home against thieves. 4 Color Flicker USB Rechargeable & Long Standby Time- Low power consumption,after full charge,it could standby 1 year. Color flicker indicates fingerprint is successfully verified,"follow-up dazzling" function.red shining indicates fingerprint is failed verified;green shine indicates charging is in progress,no bright changing is completed;pink shine indicates enter setup mode;yelow shine indicates low power,please charge it. Hidden Telescopic Rod Design- telescopic lock rod design with rod silo rack rod can be rotat 180°