Peace, mercy, and blessings of God be upon you. Two blood pressure monitors for sale: 1- Device type (veroval) duo control 2- Device type (OMRON) M4 Both are new, unused, with warranty, and are among the best types currently available. They were dispensed to me from Dallah Hospital Pharmacy. - Measures correctly even with heart rhythm disturbances. - Stores over 200 measurements. - Supports Bluetooth and data transfer to devices. - Two measurement methods: oscillation measurement and microphone measurement.