KOSS BT221i Bluetooth headphones

KOSS BT221i Bluetooth Headphones — Wireless Convenience

Wireless headphones are an ideal choice for active users seeking reliable audio performance and the convenience of a cable-free experience. Bluetooth version 4.2 ensures a fast, stable connection to any Bluetooth-enabled device within a range of up to 10 meters, offering freedom of movement without signal loss. The integrated Li-Ion battery provides up to 6 hours of playback on a single charge—plenty of time for extended listening sessions or sports activities. Furthermore, their sweat-resistant design makes them a reliable companion, even during intense workouts or on hot summer days.

Durability and Comfort for an Active Lifestyle

The Koss BT221i headphones are designed with both durability and comfort in mind. Thanks to their enhanced resistance to sweat, they can be used even during demanding physical activities. A secure fit ensures the headphones stay in place during vigorous movement or in windy conditions, making them perfect for runners, cyclists, and fitness enthusiasts alike.

Sound Quality and Performance

The Koss BT221i headphones feature a frequency range of 50-18,000 Hz, delivering clear, balanced sound across all musical genres. With a sensitivity of 101 dB SPL/1 mW, they offer ample acoustic output for a detailed listening experience—whether you are at home, at the gym, or on the go. ### Easy Charging and Long Battery Life With a playback time of 6 hours on a single charge, you don’t have to worry about your headphones letting you down during the day. A full battery charge takes only 3 hours, allowing you to get back to listening quickly. This is especially useful for users with a busy lifestyle.

Technical Specifications

• Frequency range: 50-18,000 Hz
• Sensitivity: 101 dB SPL/1 mW
• Bluetooth: version 4.2
• Range: up to 10 m
• Playback time: up to 6 hours
• Charging time: 3 hours