Should get these for when filming a Mascletà in Valencia.Up to 24 hours continuous use per chargeElectronic Noise SuppressionSuppresses harmful impulse and background noise on the job site and at homeVoice Amplification TechnologyEnhances close range conversationsAuxiliary InputiPod and MP3 compatibleWater ResistantFunctions in light rainAuto Power OffSaves battery for less charging downtimeNRR Rating: 25 dBBattery: 4V Lithium-IonCharge Time: 5 hoursIncludes: RP4530 Smart Headphones, AP4001 batt