RAVPower - ANC Headphones Up to 55 Hours of Playtime Product Description: RAVPower Headphones - Exceptional Audio Experience with Comfortable Design Active Noise Cancellation (ANC): Blocks out up to 98% of engine noise, so you can enjoy your favorite audio without distortion. High-quality Hi-Fi Sound: Delivers clear sound, extended treble and deep bass for an exceptional listening experience. All-day Comfort: Large ear cups with ultra-soft memory foam provide exceptional comfort even after hours of use. 90° Foldable Design: Easy to store and carry on the go. Long Playtime: Enjoy 55 hours of playback in normal mode, and 35 hours with ANC enabled. Quick Charge: No need to wait long, fast charging for long-lasting power. 40mm Dual Driver: Delivers powerful and impactful sound with deep bass.