<p>1. USB lithium battery charging. The lock body has a small display and buttons to increase the hours and minutes. The maximum time is 99 hours and 59 minutes.</p> <p>2. Horizontal and vertical tensile force (destructive pulling) 130KG 3rd level anti-fall (maximum level 1 and minimum level 5)</p> <p>3. Waterproof grade four, prevent outdoor rain and splashing;</p> <p>4. Use 4 hours a day, 30 days of battery life with one charge</p> <p>5. After 1200 times of charging and discharging the battery, the battery capacity drops by 15%; after 3000 times, each charge can only last for three and a half hours.</p> <p>size:46 x 40 x 20mm</p> <p>Wire rope length 90mm; diameter 2.5mm</p> <p>Wire rope head diameter: 4mm</p> <p>Material:ABS+metal</p> <p>colour:black</p> <p>Package Contents:</p> <p>1 x lock</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>