The smartphone can remain in its cover. You can charge your smartphone even while it's in the case. The energy transfer can penetrate many covers, allowing you to simply lay your smartphone down to charge without the hassle of removing it from its protective case. Don't let the light disturb your beauty sleep. The LEDs of the Wireless Charger Duo intuitively indicate the charging status with changing colors, and they can also be dimmed so you won't be distracted while falling asleep. With the fast charging feature of up to 9 watts, you won't have to wait long to get the energy you need. The fast charging function is compatible with USB PD and charging adapters with AFC fast charging capability. Your Galaxy Watch has a dedicated spot on the right side of the Wireless Charger Duo, where it is securely held in place by an integrated magnet. A travel adapter is included in the package.