... 3. Material: Zinc Alloy, LD-EM109 electronic key cabinet lock Features:1.Elegant design 2.Bright chrome treatment, reliable and durable.3.4 ... Voltage: below DV4.5V with lack of voltage indications and can use about 200 more times.2.Static Power Supply ... 2000EM,2000TM.10.Colors: Champagne Gold, black, red.Using field Swimming pool , sauna bathing spot,golf course,gymnasium locker,enterprise,school,hotel ...