450-3800 Hz Adjustable Ear Zoom Sound Amplifier HD Hearing Aid Wireless Bluetooth Personal Listening
Feature<br>1.Bluetooth style hearing amplifier ear zoom.<br>2.Dist, Lightweight and powerful.<br>3.Adjustable volume.<br>4. Can be used in any place: Home, work and meetings etc.<br>5. Comes with 3 soft ear adaptors.<br><br>Specification<br>Material: PVC<br>Colour: Black<br>Type: Wireless<br>Max Sound Output:130dB +- 5 dB<br>Sound Gain:45dB +- 5 dB<br>Total Harmonic Wave distortion(10%):!#!amp!*!lt;= 10<br>Frequency:450-3800 Hz<br>Input noise:!#!amp!*!lt;= 30dB<br>Working voltage:1.5 V<br>Working current: 10.8 mA<br>Battery Type: AG13 lithium coin battery(included)<br><br>Package Included:<br>1 x Hearing Aid<br>3 x ear tips<br>1 x instructions<br>4 x AG13/ A675 Batteries