Product Detail:

Brand: ROCKBROS
Wireless transmission: ANT+&Bluetooth
Transmission distance: ANT+: 10 m/Bluetooth: 25m
HRV: Support
Storage: Supported
Indicator light: heart rate interval display
Audible reminder: Heart rate alarm sound
Battery: Rechargeable lithium battery
Battery life: Fully charged, sustainable for 50 hours of use
Protection level: IP67
Chest strap length: L65~95cm/M50~70cm
Chest strap color: Multiple colors available
Host size: 59.5 x 27 x 10.4mm