The card beacon is using our patented cold lamination technology (patent No. 201610452484.2 to laminate theble module and PCBA and battery under the daily temperature, enjoying the lead in this industry to offer the thinnest card as thin as 1.7mm to be easilyplaced in the wallet, suitcase, handbag, passport and notebook etc.. Product Name Smart card iBeacon Material PVC Chipset Dialog DA14580 Bluetooth Version BLE4.2 Transmission Power 0dBm or -20dBmï¼?Near Field Modeï¼? Transmission Frequency default 500msï¼?100ms-10sï¼?adjustableï¼? Transmission Range open area >30meters Battery CP084646,wired recharge,85mAh(charging by magnetic type) Quiescent Current