?Features:<br /><br />The product is consist of 14 pcs colorful LEDs<br />It can flash 30 different patterns£¬and the patterns will be changed every 4 seconds<br />Patterns is clear and completely when speed up to 20kms\/hr<br />Auto-sensing switch control<br />Equipped with light sensor and movement sensor£¬flash only at night and action<br />It will not work and save power when not riding<br />Battery: Operated by 1x AAA£¬could be max to 12hrs when it works<br />Size: 109mmx72mm(LxW)<br />Waterproof level: IPX5<br />Material: Plastics<br /><br />Package includes:<br /><br />1 X Spoke Light<br />1 X AAA battery