1) Input voltage:Car accumulator: 12 - 24V / 0.3A2) Output voltage: DC 3.8 - 5.3V / 200 - 500mA 2) Accompanying plugs are interchangeable as per the applicable types sheet 3) After use, the handset battery (depending on the dry battery charge and some handset battery types) may be fully charged in 2 hours 4) After charging, this product is equipped with automatic over-charging protection Package: 80pcs/Carton Packing size: 57X35.5X26.5 (CMxCMxCM) Minimum order quantity:5000pcs Delivery time:30days Price:FOB CHINA USD 1.00/per set.