【Copper Alloy Build】: Constructed from durable copper alloy, ensuring resilience and longevity in various outdoor conditions. 【Waterproof Feature】: Engineered to withstand wet environments, making it reliable for camping and hiking adventures. 【Compact Size】: Lightweight and portable, easily fitting into your gear, making it a must-have for outdoor trips. 【Magnetic Accuracy】: Calibrated with a magnetic field intensity of 150-199 nT for reliable and accurate navigation. 【Recharge-Free Operation】: A hassle-free outdoor tool that operates without needing a plug or recharge, simplifying your adventures.