aptX is a codec developed by Qualcomm that enhances audio quality during wireless transmission. It compresses audio data to reduce latency and improve sound clarity, making it ideal for streaming music and watching videos on devices like smartphones and tablets. This technology is commonly used in Bluetooth devices, such as headphones and speakers, to deliver high-fidelity sound. By maintaining a higher bit rate compared to standard codecs, aptX ensures that users experience richer audio without significant delays, which is particularly beneficial for gamers and music enthusiasts.