Beats Solo Buds have custom-built acoustic architecture tuned for music first to deliver big Beats sound with full range and clarity. Its Dual-layer drivers are designed to minimize micro-distortions across the frequency curve, ensuring high-fidelity sound with uncompromising accuracy. The axial-aligned drivers are purposefully positioned in parallel to the acoustic nozzle to deliver sound directly to your ears, and laser-cut vents further improve audio performance while relieving pressure for added comfort. The small case makes these powerful earbuds the perfect on-the-go companion. Beats Solo Buds gives you up to 18 hours of battery life for all-day listening and includes Fast Fuel, a 5-minute charge that gives you up to 1 hour of playback.