Features: To charge the handle with existing wireless charging system. When charging the handle, the wireless power must be 5W to 15W to provide sufficient power. Place the device on the wireless charger. When the device has been charged successfully, the receiver's LED indicator will be red; the LED indicator on the handle will be orange. The receiver has an optimized circuit to improve charging speed and charge the battery fully in a short time. The receiver is equipped with over-current, over-voltage, over-charge, and short-circuit protection. Specifications: Output Power: 5w-15w Note: Necessary specifications for wireless charging (wireless charging is not included in this package) Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Package Includes: 1x Wireless Charging Receiver