Power : 4x AAA Alkaline battery ( not included ) Card type : 13.56MHz IC card or Phone NFC Card capacity : 13 Work temperature : -30~80°C Work humidity : 95%RH Specifications: Easy installation, hidden installation, no need to punch, stylish and beautiful, does not affect the beauty of the cabinet Thickened lock tongue, storage more secure, durable, safe and secure Low battery reminder function, low battery automatically open the anti-lock function, use more assured With low-power algorithm technology, the battery life of up to one year, to avoid the problem of regular battery replacement A new generation of chips, faster induction, greater stability, longer induction distance, greatly enhanced performance Two unlocking methods, cell phone NFC function plus card unlocking, 0.1s induction unlocking, responsive Package Included: 1*Lock 1*IC card 1*1 package of installation accessories 1*Instruction manual