Pacemakers are mainly used for the treatment of slow arrhythmias or severe previous malignant arrhythmias, etc. Pacemakers have a certain price difference depending on the specific function, local tariff and imported and domestic, etc. Pacemakers made domestically are around 20,000-30,000 RMB, while imported pacemakers are around 50,000 RMB, which is the price of single-chamber pacemakers. Pacemakers with double chambers may need to be doubled, and pacemakers with ICD with defibrillation function cost about RMB 150,000, depending on the specific disease. Pacemakers mainly promote the beating of the ventricles through external pulses to prevent slow arrhythmias that can lead to dizziness, syncope, or even sudden death.