Usage Tips: 1. USB rechargeable lithium battery. The lock body features a small display and buttons to adjust hours and minutes. Maximum timer setting is 99 hours and 59 minutes. 2. Horizontal and vertical tensile strength (destructive pull test): 130 kg. Third-level anti-fall rating (Level 1 is highest, Level 5 is lowest). 3. IPX4 water resistance: protects against rain and splashing water. 4. Battery life: up to 30 days with 4 hours of daily use per charge. 5. After 1,200 charge/discharge cycles, battery capacity decreases by 15%; after 3,000 cycles, runtime per charge reduces to approximately 3.5 hours. Dimensions: 46 x 40 x 20 mm Wire rope length: 90 mm; diameter: 2.5 mm Wire rope head diameter: 4 mm Material: ABS + metal Color: Black Package Includes: 2 x locks Note: Colors may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.