When evaluating Pro Bluetooth products, prioritize the Bluetooth Version (5.3 or higher) to ensure stable connectivity and lower power consumption. Key audio codecs such as aptX, AAC, and LDAC are essential for high-fidelity sound. Additionally, verify the Active Noise Cancellation (ANC) depth, which should ideally reach -35dB to -45dB for professional-grade performance. For battery life, look for units offering at least 6-8 hours of continuous playback with a charging case providing an additional 24-30 hours.