Balanced and lightweight; weighs only 1. 5 ounce. Flexible headband with Boom Microphone fits comfortably on either ear. Digital enhancements have been made to the chip mono coder/ decoder to reduce wind noise. Talk up to 8 hours OR up to 250 hours (10. 4 days) of standby time before you need to recharge with either of the included AC travel charger or car charger cord.