With the Porta Pro Wireless, the legendary Koss sound quality can be enjoyed wirelessly. Koss has successfully transferred the sound of the classic Porta Pro, which has been on the market since 1984, to the Porta Pro Wireless. The open design provides a beautiful spatial sound with fine highs and voluminous bass. With the Porta Pro Wireless, you can still perceive sounds from your surroundings, ensuring you stay safe on the street and don’t miss important announcements on the train. Despite the open design, your music allows for minimal disturbance from the environment. Thanks to its ultra-light and airy design, the Porta Pro Wireless is exceptionally comfortable. You hardly feel like you’re wearing headphones. The battery, Bluetooth unit, and remote control have been integrated into the neck cable. This also positively impacts sound quality, as any electrical component in the ear cups can negatively affect acoustic performance. The clamping pressure of the two ear cups can be adjusted to your personal preference using a slider. With a single charge, the Porta Pro Wireless boasts an impressive 12 hours of playback time. The headphones can be space-savingly folded and compactly stored in the included carrying case.