Mobile Keys for Samsung Galaxy S10 / S10 Plus (Prism Blue). The set includes the power button and the volume button. The volume button is used to increase or decrease the volume, the power button is used to turn the mobile device on or off, and the Bixby button is used to launch the Bixby function. Ideal for replacing damaged or unrecognized buttons. Compatible with models G9750 / G975N / G975F / G975U.