The platform supports Qualcomm Snapdragon Sound, the highest-level technology solution. It improves various audio performance aspects crucial to audio, such as "sound quality," "connection stability," "latency," and "call quality." ▼ It supports the aptX Adaptive codec, which automatically adjusts the bit rate according to the communication status, enabling an optimal audio experience depending on the situation, and can also transmit a high-resolution data rate of up to 96kHz/24bit. ▼ In addition, it also supports the lossless aptX Lossless codec, realizing CD-quality 44.1kHz/16bit lossless playback ※. You can experience premium sound with music, videos, games, and any other source and situation. ※ Pairing with a Snapdragon Sound-compatible device is required. ▼ The 13mm large-diameter dynamic driver of the "Air4 Pro" is equipped with a proprietary bio-cellulose composite diaphragm. It uses three different materials with different characteristics, including bio-cellulose, to form each part of the diaphragm. The combination of bio-cellulose, pulp fiber, and PU material provides sufficient rigidity, excellent lightness, and internal loss. By maximizing the characteristics of different materials, it achieves clear mid-range and dynamics, and a more natural sound. By reproducing the clarity of the mid-range without compromising the thick bass and sound pressure, it realizes a wide sound stage with excellent resolution and depth. SOUNDPEATS Air4 Pro Wireless Earbuds Noise Cancelling Bluetooth 5.3 Earphones Snapdragon Sound Compatible aptX Adaptive Lossless Multipoint aptX Voice Low Latency Dedicated App Up to 26 Hours Playback Call Noise Reduction Technical Standards Compliance Certified Soundpeats True Wireless Earphones (Matte Black)