The BTM44x Series Bluetooth modules from Laird Technologies have been designed to meet the developers need to add robust, short-range Bluetooth data connectivity to their products. They are available in a small footprint of 12.5 x 18 mm and are an ideal choice for applications where designers need both performance and minimum size. These modules are based on the Cambridge Silicon Radio BC04 chipset which consumes exceptionally low power with outstanding range and supports the latest Bluetooth 2.1 spec with an advantage of Secure Simple Pairing - which improves security and enhances the ease of use. The module is available in a number of configurations with and without an integrated antenna.