After you wearing this hearing amplifiers,your listening will be promoted greatly.You can hear clearly and loudly,make you feel young again. When you watch the play,talk with orthers,litsen music.It must be a strong helper for you. Specification: Rechargeable:Li-Battery Max Sound Output:115-125dB Signal to noise rate:27dB Frequency:500 to 1600Hz Sound gain:35dB Distortion:10% Charging time:7 hours Features: 12-14Hours continuous use with a full charge Designed for left or right ear Supplied with case and cleaning tools Supplied with USB charging dock Different sized ear tips supplied to ensure a good fit Attention: 1.Ensure the amplifier is secured in the dock before plugging it into a power source. 2.During charging a red light will appear on the USB dock. 3.The red light will turn to green once the charge is complete. 4.A full charge takes around 7 hours but it is recommended to charge the hearing amplifier for 12 hours for its initial charge. 5.Ensure the hearing amplifier is fully charged(until the green light shows) for the first three charges.
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