SwitchBot Lock Ultra

Product Description Fits 99.9% of Doors: Works with most Single Deadbolts, Jimmy Proof & Mortise locks (with adapter). Triple Battery Protection: Main + backup + emergency power keeps your lock always working. 5 Unlock Methods: Use fingerprint, auto unlock, NFC, voice, or even your smartwatch. 6-Layer Security System: Tamper alerts, encryption, and real-time status for all-around safety. Fast & Quiet Performance: Unlock in 0.3s with 98% accuracy and upgraded quiet motor. Product Information and Specs Dimensions:  Size : 122 × 62.6 × 66.8 mm (4.8 × 2.5 × 2.6 in.) Weight : 367 g (12.9 oz.) (with batteries) Battery : 3 x 18350 batteries in parallel (4200mAh total), 9 months battery life (based on 10 locks/unlocks per day) What's Included: Lock Ultra (with backup pack) Mounting components Magnet & wood grain stickers Charging cable & support/direction tape Rechargeable main pack with up to 9-month battery life Warranty All our smart locks come with a 1-year warranty.