USB Charging Earhook Noise Reduction Hearing Aid Sound Amplifier – TPU
USB Charging Earhook Noise Reduction Hearing Aid Sound Amplifier – TPU.
Key Features:
- Sound output: 114-122dB Max
- Sound gain: 30-34dB
- Total harmonic distortion: 7%
- Frequency range: 300-3800MHz
- Input noise: 32dB
- Voltage: DC 3.7V
- Current: 2mA
- Built-in battery: 45mAh
- Fully charged for about 3 hours
- Normal work about 45 hours
Package Info: Weight: 0.08kgs / 0.19lb, Size: 9cm * 8cm * 3cm / 3.54inch * 3.15inch * 1.18inch
Shipping: Shipping charges and final delivery dates are shown at checkout.