SUUNTO DUAL COMFORT BELT Suunto Dual Comfort Belt New, Unused Can be paired with Suunto heart rate monitors or compatible equipment at sports clubs. Compatible with Suunto Ambit, Ambit2, Ambit2 S, Ambit2 R, M1, M2, M4, M5, Quest, t3, t4, t6 heart rate monitors. This belt is not compatible with Ambit3 watches. I purchased this but never used it, so I am offering it for sale. Please refrain from purchasing if you are concerned about minor details due to it being a stored item. There are no included accessories such as instructions. Batteries are not included. Thank you.