When sourcing Bluetooth speakers for the Android ecosystem, prioritize Bluetooth 5.0 or higher to ensure stable connectivity, lower latency, and reduced power consumption. Verify support for A2DP and AVRCP profiles, which are essential for high-quality audio streaming and remote control functions. For premium audio, look for aptX or LDAC codec support, as these provide near-lossless sound quality on compatible Android smartphones. Additionally, ensure the speaker features a USB-C charging port, which is the standard for modern Android devices, allowing users to use a single cable for both phone and speaker.