• Up to 10W total power output for clear and loud audio. • Built-in microphone for hands-free calls. • IP67-rated water and dust resistance, ideal for outdoor use. • Integrated rubber mounting strap for easy attachment to various objects. • Over 15 hours of playback on a single charge. • Connect multiple Willen speakers in Stack Mode for a bigger sound. • Bluetooth 5.1 for stable wireless audio streaming. • Control playback via the Marshall Bluetooth mobile app.