DetailsHighlightsCustom acoustic architecture and updated drivers for powerful Beats sound.Personalized Spatial Audio with dynamic head tracking.¹Ultralight ergonomic design for all-day comfort.Flex-grip headband and ergonomically angled, adjustable ear cups for a stable fit.UltraPlush ear cushions are designed for comfort and durability.Up to 50 hours of battery life.²Fast Fuel means a quick 10-minute charge gives up to 5 hours of playback³High-resolution lossless audio via USB-C or 3.5 mm audio cable⁴Dual compatibility including one-touch pairing for both iOS and Android⁵High-quality call performance and voice assistant interaction via built-in microphoneIndustry-leading Class 1 Bluetooth® for extended range and fewer dropoutsWhat’s in the Box – Beats Solo 4 headphones; Carrying case; USB-C to USB-C cable for charging and audio; 3.5 mm analog audio cable; Quick Start Guide; Warranty Card. (USB-C power adapter sold separately)¹Compatible hardware and software required. Works with compatible content in supported apps. Not all content available in Dolby Atmos. iPhone with TrueDepth camera required to create a personal profile for Spatial Audio, which will sync across Apple devices running the latest operating system software, including iOS, iPadOS, macOS, and tvOS. ²Testing conducted by Apple in March 2024 using preproduction Beats Solo 4 and software paired with iPhone 15 Pro units and pre-release software. The playlist consisted of 358 unique audio tracks purchased from the iTunes Store (256-Kbps AAC encoding). Volume was set to 50%. Testing consisted of full Beats Solo 4 battery discharge while playing audio until Beats Solo 4 stopped playback. Battery life depends on device settings, environment, usage, and many other factors. ³Testing conducted by Apple in March 2024 using preproduction Beats Solo 4 units and software paired with iPhone 15 Pro units and pre-release software. The playlist consisted of 358 unique audio tracks purchased from the iTunes Store (256-K