2PCS Sound Hearing Aids Digital Mini In Ear Adjustable Tone Amplifier(Non Rechargeable)

Features: * Comes with rechargeable function, no need to change battery * Combines a cosmetically appealing look with the smooth sound an internal speaker * Channel digital sound processing allows the user to control volume and programs * Filter out unwanted noise caused by airflow or wind Deliver direct, powerful, and smooth sound right into your ear * Moisture resistant provides durability to most forms of moisture and wear * Separate wire and headphone, more convenient and safety Specifications: * Max sound output: 125+-4db * Sound gain: >=38db * Total harmonic wave distortion: <=10% * Frequency range: 450-3500Hz * Input noise: <=30db * Ni-mh battery: DC 1.2V * Current: <=2mA * Input: 100-240V 50/60Hz * Output: 1.5V 8mA Each Package includes: 2 x Hearing Aid 2 x Hanging Strap 4 x Earplug 1 x User Manual 1 x Storage Case How to use: * Before using switch the volume to the minimum position. * Put the ear hook on your ear, plug in the ear plug tightly. * Turn on the power and adjust the sound volume to get clear sound. * If you hear the whistling sound, please check whether you have plugged in the ear plug tightly. If it can’t be plugged tightly, please change the other size plug. * Remove the battery if you don't use it for long time.

Moisture resistant Separate wire and headphone Convenient and safety Channel digital sound Cosmetically appealing look with the smooth sound