13.Does the BTR5's USB DAC support mobile phones? Will my phone be reversed charging after it is connected?
1. BTR5 can be connected to phones, which need to be equipped with a dedicated USB adapt cable, such as the FiiO LT-TC1. Now most mobile phones can be supported USB DAC after installing the FiiO Music APP, but since the current USB audios of various brands'phones are not standardized, FiiO's products can't guarantee to be fully compatible.
2. Your phone would be reversed charging, so you need to enter the menu and set the charge of BTR5 to 'OFF'.