World Smallest Smart Door Lock Bluetooth Intelligent Home Small Electronic Digital Cylinder Door Lock Why choose us? 1.We are the factory which has new ideas about R&D and markets demands. 2. We consider quality as our pursuit and offer satisfying after-sale support. 3. We offer personal services to those who need special products. 4. Fashionable intelligent .products. 5. Different locks cylinder to meet different demands. 6. Family business, hardware and components of our own factory production, strict quality control. Smart cylinder lock (adjustable) Innovative cylinder lock safety, refuse all cloning, makes your life far away from troubles! Independent R&D bank level smart security device with international leadingfingerprinttechnique. Product advantages Japanese motor support 5.000.000 times of rotating reliable test to make sure high stable and safe quality Only 3 mins to DIY install without breaking the door or change the door body and no professional installer needed No violent break-in can open the door, because the unlocking controlling board is in the handle behind the door Rechargeable battery fully charged in 1 h, last 2 years, support using 10,000 times. And the red light will flash when power is less than 10% and the buzzer will ring 5% Length adjustable cylinder patented invention, 99% of the world’s doorsto compliance It works extreme temperature range:-40℃ to 80℃ Landlords do not need to change the door lock for safety reason any more. Once the renter is gone, his or her fingerprint will be deleted Payment : 1. Some pictures in the link just for reference ONLY,specific please in kind prevail or ask us for details. 2. Aliexpress accept Escrow/Credit Card/WebMoney,please make the payment ASAP after you make order. Shipping : 1. We ship to Alixpress's address ONLY.Make sure your address in Alixpress is matched with your shipping address before you pay. 2. We will ship your order within the processing time,pls be patient after you make order. 3. We strive our best to provide you the most reliable, affordable way of shipping service. But sometimes international delivery is highly depended on the Courier Company and local customs/duties. If you do not receive your item on time, please contact us immediately for further assistance. 4. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country`s customs office to determine what these additional costs will be prior to bidding/buying. 5.When meet post office parcel backlog problem,we will change and choose the proper shipping way according to the actual conditions,to insure you can get your goods faster.We suggest you choose DHL Fedex EMS HongKong or Singapore Post when you make order. Return : 1. If you're not pleased with your purchase, we`ll be happy to make an exchange or refund. 2. For any exchange or refund, we need the product must be in its original condition,retail box and all the accessories. Buyers is responsible for the returning shipping cost. 3. Please contact us before you return the item, we will offer you the right return address. Feedback : 1. Your comment is very important for our business. Please take 1 min to leave us a positive feedback with an overall Detailed Selling Rating of 5 star! 2. If you are not satisfied with your purchase in any way, contact us in time. We understand the concerns and frustrations you might have, and will try our best to resolve the issues 
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