u-blox NINA-B2 Stand-Alone Dual-Mode BLUETOOTH® Modules are small, dual-mode BLUETOOTH standalone modules. They are designed for ease of use and integration into professional applications. The modules are pre-flashed with u-connectXpress software. This provides support for peripheral and central roles, Serial Port Profile, GATT client and server, beacons, u-blox BLUETOOTH low energy Serial Port Service. These are all configurable from a host using AT commands. This software is easy to use and reduces the time, risk, and cost to add BLUETOOTH connectivity to products.