Rechargeable Invisible Hearing Aids White charging box + red and blue shell

Professional auditory and acoustic design, high-quality components, bringing clear and natural listening enjoyment, rechargeable and portable charging boxes very easy to use. simple, convenient, high-quality and clear and natural sound quality.Audiological FeaturesLow Equivalent Input NoiseSuper Clear SoundLow Frequency Cut FilterFunctional FeaturesIntegrated signal processingBalanced Armature ReceiverMEMS MicVolume Control Mode: Rotated VC 0~Max.Rechargeable lithium-ion batteryCharging time: 2.5 hoursBattery life: 25 hours per full chargeStandby