About this item 70-Hour Marathon Battery with Quick-Charge Convenience: Engineered for endurance, these wireless headphones deliver up to 70 hours of playtimeenough for cross-country flights or weeks of daily use. A 10-minute quick charge provides 3 extra hours, and the included AUX cable ensures your audio never stops, a testament to their flagship-level power management. Studio-Grade Sound with 3 Pro-Tuned EQ Modes: Experience Hi-Fi audio shaped by acoustic engineers. Switch between Balanced, Bass Boost, and High-Definition modes to match your music, podcasts, or movies. Powered by dual 40mm drivers, these over ear headphones deliver the crisp highs, rich mids, and deep bass expected from a premium audio device. Advanced Bluetooth 5.3 & Crystal-Clear Call Clarity: Enjoy flagship-grade connectivity with Bluetooth 5.3 for stable, low-latency transmission up to 66 feet. The built-in ENC (Environmental Noise Cancellation) microphone isolates your voice, ensuring exceptionally clear calls