Taking a design cue from our Pro Series in-ear monitors, the ergonomically-designed earbuds are lightweight and comfortable while offering a custom-like fit for nearly everyone. The formable earhooks provide extra holding power, keeping everything in place during strenuous activities. The USB-rechargeable battery provides up to 6 hours of playback per charge, so PureSonic Premium Wireless earbuds can easily keep up with your on-the-go lifestyle.