Eartec Lithium 3.7 Volt 3.0Wh Re-Chargable Battery
These Eartec Rechargeable batteries are compatible with UltraLITE headsets, UltraPAK beltpacks and the HUB.
Since UltraLITE headsets feature self-contained, ‘All-in-One’ design all electronics, even the battery is installed in the headset plastics. The batteries are lightweight and about the size of a box of matches. They charge in about 3 hours, and can last for up to 6 hours, and be replaced in seconds. Since they are Li-ion, the batteries do not have to be drained after each use, and will never develop a memory.