Waterproof Cadence Bike Sensor with Bluetooth Smart Technology，Wireless Bicycle Speedometer with APP Control<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Easy Installation:Bicycl table is very easy to install，first with a rubber belt equipped with a biycle tabble fixed on the bike，adjust the angel，with nylon cable tension can be.</li><li>Waterproof IPX4:Can work in outdoor，working time around 500 hours with CR2032 battery.</li><li>Combine with the telephone，GPS，photo shooting and heart rate monitor，and also can make your riding plan &amp; enjoy a nice riding.</li><li>Bluetooth 4.0:a lower power transmission，support the versions of Android4.3 and IOS 6 APP above，record the data of cycling.</li><li>A safe design:It is a colorful design，make better safe riding at the night.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41KzNHijZyL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41HtDzkTx9L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51TWy3YUMgL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41eq6ofDSqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41CzRttsoJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/516AzAhD-ZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51KIiS88cmL.jpg" noproxy>