How do I switch between high power standby and low power standby on Beoplay S3?

You can switch between the two standby power modes by double pressing . In high power standby, Beoplay S3 will have sense on all inputs and can wake up, and the product indicator will signal an action. This is also the default setting. In low power standby, the speaker will not have Bluetooth or input sense, and there will be no product indicator signals.