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Hearing aids Behind the ear
Description of the items:
Affordable and reliable Ear AmplifierHear the softest whispers loud and clear from up to 100 feet away 5 adjustable volume levels Includes batteries and extra ear pieces for a customized fit Maximum Saturation Sound Pressure: 129dB ± 4dBMaximum File Acoustic Gain: 50dB ± 5dBHarmonic Distortion: ≤ 5%Frequency response: 450 ~ 3500HZEquivalent Input Noise: ≤ 30 dBStandard Battery: AG13 button cell/ A675 button cellWorking Voltage: D.C. 1.5VOperating Current: ≤ 4 mAColor: Beige & WhiteDimension: 53 x 44 x 10mm/ 2.08 x 1.73 x 0.39in(L x W x H)Noise is small, good sound quality