Next-Gen Bluetooth 5.4 Stability: Experience ultra-stable connections and faster pairing with advanced Bluetooth 5.4 technology, supporting a reliable wireless range of up to 10 meters for seamless audio. Rich 10mm Dynamic Sound Quality: Enjoy crystal-clear audio with powerful bass from 10mm high-fidelity drivers, delivering an immersive listening experience for music, calls, and entertainment. All-Day Ready: 4H Play + Fast Charge: Get 4 hours of playback/3.5 hours talk time, extended by the 400mAh case. Recharge fully in just 1.5 hours via USB-C for non-stop use. IPX4 Sweatproof & Feather-Light Design: Weighing only 10g with IPX4 water resistance, these earbuds survive workouts and rain while offering all-day comfort without fatigue. Jerry 7016G8 Chip Optimized Performance: Powered by the advanced Jerry 7016G8 chipset for efficient connectivity, low-latency streaming, and enhanced battery management.