The differences between the H70 and H730 are:
Talk time: H720 is 8 hrs. & H730 is 12 hrs.
H730 is sold at Best Buy, but the H720 is not sold at Best Buy.
H720 is an older model, but will still work with Bluetooth phones.
Jabra - Extreme2+ Bluetooth Headset - Brushed Metal
(1,300)