What Bluetooth version and profiles does the A90 Pro support?
The A90 Pro earbuds use Bluetooth 5.3 technology and support HFP, A2DP, HSP, and AVRCP Bluetooth profiles. Compared to Bluetooth 5.2, the 5.3 version offers faster transmission speed and a more stable connection to help prevent signal drops or audio interruptions. (Pages 2 and 17)
From the official Btootos A90 Pro Wireless Earbud Bluetooth Earbuds manual, page 17
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