What AVRCP version does my Bluetooth® module support?
For RN52, the Audio/Video Remote Control Profile (AVRCP) version is v1.5. Other than mandatory commands, metadata info commands are supported. Other optional features, including browsing, are not available.
For BM62, the AVRCP version is listed in the "Features" section of the datasheet, which is available on the BM62 product page.