Features: Specifically for CR2032 batteries, this mounted holder module ensures secure connection and reliabled power supply for various electronic circuits. Featuring corrosion resistant metal contacts and standardized pin layouts, the module design allows effortless integration into circuit boards through soldering or direct insertion. Ideal for electronics enthusiasts, device developers, and engineers requiring compactly battery solution for prototyping boards or low power applications. Perfect for maintaining stable voltages in wearable technology, remote controls, digital thermometers, and other space constrained portable electronics. Its multiple protections mechanism safeguards battery integrity while the lightweight construction (under 5g) minimizes impact on device portability. Specifications: Single size: about 29x30x4.5mm/1.14x1.18x0.18in Purpose: for watches, remote controls, electronic，calculators and other small electronic devices. Quantity: 10pcs 、20pcs Package Includes: 10/20pcs CR2032 battery holder module note: Due to the problemsof lighting effect there will be tolerances in product, please understand. Please allow 0-1cm error due to manual measuremen