nRF51822 Bluetooth® Low Energy Module

If you have a custom PCB design and you'd like to add a little Bluetooth® Low Energy, this module is ultra-compact and easy to use. It contains a Nordic nRF51822 Cortex M0 chip with an integrated BLE radio, along with most of the supporting circuitry and even a chip antenna. The whole thing is in a tin and comes with FCC, CE, and TELEC certifications.