How to pair XPOWER RIGHT-SIDED with existing XPOWER LEFT-SIDED

How to pair XPOWER RIGHT-SIDED with existing XPOWER LEFT-SIDED If a SINGLE-SIDED power meter is purchased as an addition to an existing SINGLE-SIDED power meter, the two must be paired together to perform as a DUAL-SIDED power meter. Before you start An android phone with XCADEY app. You can get the app it in this