Product information:
Weight: 13g (monitor only) Unit size: 57.6 * 33 * 11mm (monitor only) Support chest circumference; 64-86cm (± 2cm) Heart rate unit: bpm Wireless interface: Bluetooth 4.2, ANT+ Battery model: CR2032x1 Heart rate range: 30-240bpm Waterproof grade: IP67
The package includes: Heart rate sensor * 1+CR2032 battery * 1 (pre installed in the sensor)+adjustable elastic band*1