Snapdragon Sound & Hi-Res Sound & aptX Adaptive Audio. The EarFun Free Pro 3 wireless earbuds adopt the latest advanced Qualcomm QCC3072 chip, new Snapdragon Sound Technology, and aptX adaptive audio to deliver a dynamic yet balanced audio experience. Our true wireless earbuds are compatible with Hi-Res audio decoding, providing a transfer rate of up to 24bit/96kHz, achieving lossless transfer while delivering high fidelity. Tips: iOS devices are not compatible with aptX Adaptive. Active Noise Canceling up to 43dB. Experience active noise cancellation with EarFun's QuietSmart 2.0 ANC technology that reduces noise by up to 43 dB. Freely switching between three modes (ANC / Ambient Sound / Normal) with one button allows you to immerse yourself in your own world no matter your environment. Tips: Upgrade the latest firmware in the App to experience the Ear-Adaptive ANC modes for better ANC effect. 6 Mics with Qualcomm cVc 8.0 Noise Reduction. Each earbud houses a built-in thr