Portable Digital Tone Hearing Aids Aid Sound Amplifier

Features Convenient to wear Low noise low distortion For people with severe hearing loss Product use hearing assistive devices The scope of application of gas conduction hearing disorders Taboos otitis media or ear suppuration who are disabled Technical indicators Maximum saturation sound pressure level of 129dB4dB Full profile acoustic gain 38dB Frequency range of 450Hz 3800Hz Power Supply Voltage 1 5V Battery model LR44Specification Maximum saturation sound pressure level 129dB4dB Full sound gain 38dB Harmonic distortion 15 f 1000Hz F 1000Hz10 Frequency Response 450Hz 3800Hz Equivalent Input Noise 30 dB Operating voltage 1 5V Working current 8mAWeight 86gNOTE If you hear a howling check the ear silica gel is appropriate and whether the size of plug is tight the appropriate choice of earplugs and plugged make sure no air leakage Use for long periods of time please remove the batteries to prevent battery rot erosion hearing aid components Please regularly clean the ear plugs or ear molds in order to ensure the normal use of hearing aids Avoid shock drop moisture and high temperature Package Included 1 x Digital Tone Hearing Aid2 x 1 5V Battery4 x Earplug2x Earplug Connector1x Users Manual