This precision-engineered Wireless Charger Coil (also known as a rectangular Air Coil) is designed for high-performance, space-constrained wireless charging applications. Crafted with pure copper wire in a flat, open air-core structure, it delivers exceptional power transfer efficiency, low energy loss, and stable performance for slim charging pads, wearable chargers, and embedded wireless charging systems. The rectangular form factor is optimized to fit compact enclosures where traditional circular coils cannot, making it ideal for custom consumer and industrial charging solutions.