Features:
? 100% brand new sound amplifier behind the ear
? Super mini size and light weight, not easily to be seen
? Adjust volume to the minimum before wearing
? Choose an earplug of slightly bigger size to avoid whistler
? Increase volume gradually to avoid sudden increase in sound
? Powered by 1 x AA battery (NOT included)
? Size: 7.0 x 4.0 x 2.0 cm (L X W X T)
? Color: as pictured
Technical Specifications:
? Max Saturated Sound Pressure: 130dB+5dB
? Sound gain: ≥ 50db
? Harmonic Wave Distortion:≤ 5%
? Frequency response Range: 300--- 4000 Hz
? Input Noise: ≤ 30 dB
? Power Voltage :1.5 V
? Working Current : ≤4mA
? Battery Type: 1 x AA battery (NOT included)
Package included:
? 1 x hearing aid amplifier
? 2 x earplug
? 1 x manual

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