Leupold VX 3HD 3.5 10x50 30mm CDS ZL Ill Firedot Twilight Hunter Scope bean a clap 5 oz (100 g) BATTERY 5 oz (100 g) BATTERY TYPE Rechargeable internal lithium ion BATTERY LIFE Up to 14 days at 10 minute tracking send interval with standard activity recording with full sky viewUp to 4 days with moderate tree cover (default)Up to 5 days at 10 minute tracking send interval with high detail activity recording with full sky viewUp to 2 days with moderate tree coverUp to 30 days at 30 minute tracking send interval with standard activity recording with full sky viewUp to 10 days with moderate tree coverUp to 1 year when powered off WATERPROOF IPX7 INTERFACE USB C Maps & Memory Never worry about your sight going flat at the wrong time again Eliminates the need for holdovers on longer shots with the Custom Dial System FireDot Illumination creates a visible aiming point in low light conditions Prevents accidental adjustments and ensures an accurate return to zero with a ZeroLock dial