Features 1、Efficient: High efficiency wireless charging coil, wireless output, high transfer rate, saving time and electricity. 2、Material: Adopt PCB board, strong and durable, more than 70% efficient energy conversion. 3、Versatile: Suitable for DIY wireless charging desktops, custom casings, car charging projects, and more. 4、Multiple Protections: Support short circuit, over current, over temperature protection, and stop charging when overloaded. 5、Portable And Ultra Thin: Lightweight, safe and reliable, high power, fast charging. Specification Item Type: Wireless Charging Module Material: PCB Input: 9V-1.67A (MicroUSB) Output: 10W Transmit Distance: Approx.5-10mm / 0.2-0.4in Wireless Charging Conversion Efficiency: 70% Compatible With Qi Standard: WPC1.1 Protection Measures: Over Current, Over Temperature, Short Circuit Protection Package List 1 x Module