New Bicycle Multi-function Computer Heart Rate Monitor Speed Kilometer Three-in-One XB-BC335-L Computer
-Model: XB-BC335-L wireless computer
-Weight: 191g
-Color: Silver
-Stopwatch size: 6.6 * 4.7 * 2
-Chinese HD large screen display (HTN)
-Wide temperature operation (-10 ~ 60 ℃)
1bar waterproof
-Wireless cadence + speed + heart rate hybrid encoding
-China’s first wireless automatic wake-up function

Note:

• The distance between magnet and sensor should be within 5mm
• The speed sensor and heart rate sensor are all powered by 1*CR2032 button cell battery (included)