The Qualcomm QCC-3021-0-80PQFN-TR-00-0 is a versatile and high-performance Bluetooth audio SoC designed to enhance the functionality of wireless audio devices. It integrates Bluetooth 5.0 technology, which provides several advantages over previous Bluetooth versions, including faster connection times, greater range, and reduced power consumption. This results in a more stable and reliable wireless audio experience for users.

A key feature of the QCC3021 is its support for TrueWireless Stereo (TWS) technology. TrueWireless allows for synchronized audio playback between the left and right earbuds, eliminating the need for a primary master device. 

In terms of audio codecs, the QCC3021 supports SBC, which is a standard codec for Bluetooth audio streaming. Depending on specific configurations, it may also support aptX, which provides higher audio quality with lower latency compared to SBC. 

Housed in an 80-PQFN package, the QCC3021 is designed for compact and space-constrained devices. Despite its small size, it delivers a range of features that support high-quality audio and efficient connectivity. The operating temperature range of -40°C to +85°C ensures reliable performance in various environmental conditions.