Vibration mode：13 hrs

durable ankle heat transfer for protection against chain abrasion

Flashing mode - 200 lumens： 150hrs

a barometer and an accelerometer

CNC machined and hard anodized 6061 aluminum handle and a 5mm precision ground flat blade

Shimano XT CS-M771 10 Speed Cassette - Shimano HG Splined - 11-36T - 10 Speed PDP|Colour Vibration mode：13 hrsThe Shimano XT CS M771 10 Speed Cassette is a great option for anyone looking to update or replace 10 Speed cassette. Featuring Shimano's HyperGlide and Dyna sys technologies, this cassette offers riders consistent and high quality shifting performance. Who's this item for: Riders who are after a great quality 10 speed Shimano cassette. Number of gears: 10 Materials construction: Nickel plated steel. Alloy carrier. 6 rings on spider (3+3 structure)