HearNa HAS40 In The Ear Hearing Sound Amplifier - One Set for Deaf Hearing - Aid Device with High Quality Voice Amplify

Description

Specification: Mini Hearing Amplifier Max Sound Output:130+-5dB Sound Gain:>=50dB Total Harmonic Wave distortion:Frequency:300-4000 Hz Input noise:Working voltage:D.C.1.5V Working Current: Battery size: AG3 Accessory: 2 x AG3 battery 3 x ear tips 1 x storage box 1 x manual book