Take Noted . -Product Warranty Details- 2 Years Warranty By Aqara Malaysia 3 Months For Battery Included Product. IMPORTANT : PLEASE KEEP THE BOX DURING THE WARRANTY PERIOD This Is necessary in case we need to do 1-to-1 EXCHANGE . We reserve that right to refuse warranty if product has been abused or damaged due to improper care. We may refuse warranty if item was found out to be: -Water Damaged. -Excessive and unnatural wear. -Sealed Broken / Serviced by unauthorized technician. Contact Us For Further Inquiry; H/P +60125133902 Lucas Take Noted - Please Message Us Before You Purchase , Can Send Us Photo Of Your Door - No Warranty If You Install Yourself - Aqara D100 Zigbee Edition Only Works In AQARA Apps in Other Region - Aqara D100 Works in Xiaomi Mi Home Chinese Mainland Only Aqara D100 Zigbee Edition Include E1 Hub and 2 NFC Card Product Name: Smart Door Lock D100 Zigbee Edition Product Model: ZNMS20LM Product Size: 393.8*74.2*58.6 mm Net Weight: 4.2kg Power Supply Mode: 2480mAh lithium-ion battery (7.2V ), USB-C emergency power supply (5V ) Wireless Protocols: Zigbee, Bluetooth 5.0, NFC Operating Humidity: 0-93% RH, non-condensing Operating Temperature: -10°C -55°C