Cadence speed dual sensor bike computer speedometer ant+ bluetooth waterproof gps cycling bicycle accessories kompatibel met garmin, wahoo, zwift, tacx, bryton, xoss, blackbird, enz. Features -color: black -size: 29.5Mm*38mm*9.5Mm -weight: 9.2G -battery: 220mah cr2032 -voltage: 3v -function: track cycling speed or cadence -using time: 300 hours -standby time: 300 days -waterproof: ip67 -link method: bluetooth 4.0 Ant+ -compatible: ant+