Bluetooth Mate Silver with RN-42 class 2 module<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Designed to work directly with Arduino Pro's and LilyPad main boards </span></li><li><span class="a-list-item"> FCC Approved Class 2 Bluetooth Radio Modem， Integrated antenna </span></li><li><span class="a-list-item"> Low power consumption : 25mA avg </span></li><li><span class="a-list-item"> Operating Voltage: 3.3V-6V </span></li><li><span class="a-list-item"> Serial communications: 2400-115200bps </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41SU-xj0SRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41tAGNEtU4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51s2%2BZUDZ2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51A24Us5UJL.jpg" noproxy>