HW electro shock (warning is dangerous this is not a toy) if you dont have a skill, dont try to make this !!!!!!

Need to Buy::
https://es.aliexpress.com/store/product/5-pcs-Micro-USB-5V-1A-18650-TP4056-Lithium-Battery-Charger-Module-Charging-Board-With-Protection/4376108_32895526166.html?spm=a219c.search0604.3.42.64074fdaLimjfg&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10068_319_10059_10884_317_10887_10696_321_322_10084_453_10083_454_10103_10618_10307_10820_10821_10303_537_10302_536,searchweb201603_52,ppcSwitch_0&algo_expid=a48da5db-d36d-4e2d-8381-c3fbe1bb9c28-7&algo_pvid=a48da5db-d36d-4e2d-8381-c3f