100 nrf51822 bluetooth 4.0 module products are offered for sale by suppliers on Alibaba.com, of which bluetooth modules accounts for 85%, other communication & networking product accounts for 8%, and other ics accounts for 2%.
A wide variety of nrf51822 bluetooth 4.0 module options are available to you, You can also choose from bluetooth 5.0, nrf52832 and nordic nrf52832 nrf51822 bluetooth 4.0 module,