Product Parameters APP, bluetooth, mechanical keys, card, wifi, password, fingerprint bluetooth remote + Rf remote suitable door type: door, wooden door, steel door Power supply : dry battery Connection : bluetooth, WiFi protection level : waterproof Suitable for door thickness : 20-80mm Subject : Zinc alloy power supply : 4 x AA 1.5V batteries Handle direction : Reversible Panel Sizes : 168(mm)*34(mm)*60(mm)