Core Insights - Sennheiser celebrates its 80th anniversary by launching a limited-edition version of its flagship Momentum 4 headphones, featuring a graffiti-inspired design by artist Bond Truluv while maintaining the original's hardware and sound profile [1][13] Design - The Momentum 4 80th Anniversary Edition retains the solid hardware of the standard model, utilizing quality plastic, with a distinctive graffiti aesthetic that includes vibrant characters and sound waves [3] - The headphones feature yellow faux-leather padding on the headband and soft earcup cushions for extended comfort during use [4] User Experience - Touch-sensitive controls for playback are included, allowing for single taps to play or pause, swipes for track changes, and vertical gestures for volume, although they may require some adjustment [5] - The Sennheiser Smart Control Plus app enhances the user experience by allowing customization of sound profiles, noise cancellation management, and automatic setting adjustments based on location [6] Acoustic Performance - The Momentum 4 headphones deliver a well-balanced sound signature, with deep bass and clear treble, making them suitable for various audio content [7][8] - They perform well for movies and multimedia, providing clear vocal details and well-separated background sounds, aided by four beam-forming microphones for effective voice pickup [9][10] Connectivity and Battery Life - The headphones support multipoint connectivity, allowing seamless switching between devices, and feature Google Fast Pair for quick connection with Android devices [11] - Battery life is rated at 60 hours, with real-world usage lasting 4-5 days, and an auto power-off feature that improved after a software update [12] Conclusion - The Momentum 4 80th Anniversary Edition combines a striking design with the trusted performance of the original model, appealing to a younger, style-conscious audience while maintaining stellar audio quality and impressive battery life [13][14]