... and waterproof capabilityGreen products, environmental friendly, radiation free, and low power consumptionBuilt-in audio system with high fidelityDescription:Rio-H Electronic ... -yearElectricalOperation VoltageTypical +DC 5V, +4.75V to +5.25VPower SupplyUSB, power ripple max.200mV rmsPower<2W, operating current<200mAAgency ApprovalsCE, FCC ...