Feature

Non-coded heart rate transmitter belt includes medium strap that fits 25 to 54 inch chest size
Transmits HR data to Polar heart rate monitors using 5kHz transmission and compatible gym equipment
Slim, lightweight, and completely waterproof
Non coded version (doesn't prevent crosstalk).Coded and non coded version both comes with similar user manual.
Non user replaceable battery
Kindly refer the user manual attached below for troubleshooting steps and instructions.
Brand : Polar
Item model num : 92053123
MPN(PartNumber) : 92053123
EAN : 0725882017570
Product Dimensions(LxWxH) : 9x3x37cm ; 159 g
Package Dimensions(LxWxH) : 31x10x3cm ; 159 g