F 137 Earplug Digital Volume Hearing Aids Sound Amplifier Adjustable

AXON F-137 Earplug Digital Volume Hearing Aids Sound Amplifier Adjustable When you see film, watch the play, have meeting, or have classes, the product can help you to hear the sound clearly and loudly. While in forest, if you want to hear very slight sound, it will be a good choice. Features : 1.Loud en Clear sound, cheap price. 2.Fashion design, comfortable to wear and easy to use. 3.Beautiful apperance, durable. 4.Ear volume control, N-H switch. 5.With "H" low frequency noise reduction 6.CE Approval Specification : Item No. : F-137 Max Sound Output : 130 -5dB Max Sound Gain : 48dB -5dB Harmonic Wave Distortion : <=4 procent Frequency Range : 450 3500Hz Input Noise : <=30dB Battery : AG5 or A13(Zinc air) Working Voltage : D.C.1.5V Working Current : 3mA Measurement : 46 38 9mm Weight : About 92g NOTE : If you hear the whistling sound, please check that whether you plug in the ear plug tightly. If it cant be plug tightly, please change the other size plug. Use for long periods of time, Lees meer over de F 137 Earplug Digital Volume Hearing Aids Sound Amplifier Adjustable van huismerk in de productgroep gezondheid en verzorging