Product Name: Lockin SV40 Smart Lock

Unlock ways : Fingervien/PIN code/NFC card/Bluetooth/Mechanical key
Lock tongue material : Stainless steel
Encryption chip : Mi encryption chip
Dimensions : L385*W73*H22mm
Main material : Aluminum alloy
Using app : Mi (Mijia) App
NFC card capacity : 25
Standby time : 12 months
Password capacity : 50 groups
Fingerprint capacity : 30 groups
Emergency power supply : Type-C
Heaven and earth hook : Not support
Main power supply : AA Batteries x 8 : 12 months (assuming 10 open/close cycles per day)
Password length : 6 digits, up to 16 virtual PIN