CYCPLUS wireless sensor set that measures both speed and cadence. Compatible with ANT+ and Bluetooth. New package compared to the product photos. Includes a Japanese instruction manual. I also use it connected to cycle computers such as Garmin, Wahoo, CYCPLUS, and IGP Sport. It connects instantly, and switching modes is as simple as sliding the battery cover. The battery is a common coin battery that can be purchased at 100-yen shops. I attached it in 2021 and have been washing my bike vigorously with it still attached, and it hasn't broken, so I recommend it. Size: 29.5x38x9.5mm Weight: 9.2g Battery: CR2032 Battery life: 600 hours in cadence mode, 400 hours in speed mode, 300 days in standby mode Waterproof: IP67 Amazon reference price: 3770 yen