Specifications:
Maximum Saturation Sound Pressure: 129dB ± 4dB
Maximum File Acoustic Gain: 50dB ± 5db
Harmonic Distortion: ≤5%
Frequency Response: 450 - 3500Hz
Equivalent Input Noise: ≤ 30dB
Battery Type: AG 13 Button cell
Operating Voltage: 1.5V
Operating Current: ≤4mA
Color: Beige
Size: 5.3 x 4.4 x 1.0cm / 2.1 x 1.3 x 0.4in(L x W x H)
Package content:
1 x Hearing Aid
2 x Button Cells
2 x Earplugs