
20-daylong-lastingbatterylife,90-daylongstandbymaincontrolchipadoptsimportedchipNordicnRF52832,180mAhhighenergydensitylithiumpolymerbattery,strictrippleprocessingonthemotherboard,ESDstaticprotect Zincalloybody+temperedglassmirror Bluetooth:0 Battery:180mAhlithiumpolymerbattery