Boosting talk time You never need to worry about running out of battery. The Jabra Boost is small & slim, it gives you all the power you need. With up to 9 hours of talk time, & up to 1 year of standby time, with the new Power Nap feature, this means that you can take calls all day & takes the worry away. No more running out of battery, when you are on-the-go.