Type: Hearing Aid
Model: F-18
Material: Acrylonitrile Butadiene Styrene
Color: White & Green
Maximal Sound Output: 129dB ± 4dB
Maximal Sound Gain: ≥ 55dB ± 5dB
Harmonic Wave Distortion: ≤ 5%
Frequency Range: 450-3500 Hz
Input Noise: ≤ 30dB
Battery: 1 * 1.5V "AA" Alkaline Battery (Not included)
Working Voltage: Direct Current 1.5V
Working Current: ≤ 4mA
Item Size: Approx. 4.5 * 2.5 * 7.0cm / 2.0 * 1.0 * 2.8in (L * W * H)
Item Weight: Approx. 28.0g / 1.0oz
Total Size: Approx. 12.1 * 8.6 * 3.2cm / 4.8 * 3.4 * 1.3in (L * W * H)
Total Weight: Approx. 111.0g / 3.9oz