This is a high-performance replacement cordless battery for the Jabra PRO 9450, guaranteed to meet or exceed the OEM specifications of your original. The cordless battery is 1.33 x 0.96 x 0.156 inches with an output of 3.7 volts. The chemistry is LI-POL at 295mAH capacity. Manufactured by Empire Scientific, model number CPP-549. We offer a 1 Year Warranty with purchase. See this product elsewhere at a lower price? Call or email us; we have a Price Match Guarantee.