Complete replacement button set (Power Button & Volume Button) for Samsung Galaxy S20 / S20 Plus (Cosmic Black). The Volume Button is used to increase / decrease the volume, and the Power Button is used to turn the device on / off. Replace damaged, broken, unresponsive, or defective Volume and Power Buttons on your Samsung Galaxy S20 / S20 Plus with our replacement part. Each part is tested before shipping. High-quality materials and precise engineering. Specially designed for the Samsung Galaxy S20 / S20 Plus.