Bluetooth speed and cadence sensor plus bike computer (RFLKT+). Compatible with Android and iPhone. Still have the original mounts and attachments to attach them to your bike. Both lightly used and in working order.

See http://www.wahoofitness.com/devices/wahoo-rflkt-plus-iphone-powered-bike-computer and http://www.wahoofitness.com/devices/wahoo-blue-sc-speed-and-cadence-sensor for more information.