Polar Bluetooth Smart Speed & Cadence Sensor | Black Set Briefs Wireless connectivity via Bluetooth® with

Wireless connectivity via Bluetooth® with most smartphones and notebook computers

a back zip pocket with a welt pocket flap and a front zip coin pocket

Adjustable removable waist strap with zipper pockets

Quickly adjustable with durable aluminum quick-adjusters

Welded-Waterproof 600 denier military grade truck tarpaulin liner

Polar Bluetooth Smart Speed & Cadence Sensor | Black Set Briefs Wireless connectivity via Bluetooth® withBoost your cycling performance with the advanced technology of the Polar Bluetooth Smart Sensors. Together, the cadence and speed sensors help you gauge your most efficient pedaling rate based upon your speed and distance. The Bluetooth Smart technology syncs all of this data to your smartphone via Polar Flow. Polar Flow is a mobile application that is especially great for setting goals and tracking your progress. [Details] Compact and lightweight