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● Maximum Saturation Sound Pressure: 125dB to 133dB
● Maximum File Acoustic Gain: 43dB to 53dB
● Frequency Response: 450Hz to 3000Hz
● Equivalent Input Noise: 0db to 30dB
● Battery Type: Li-ion Battery
● Operating Voltage: 0.1V to 0.3V
● Operating Current: 0mA to 4mA
● With rechargeable function and no need to change battery
● With a natural outlook to avoid being discovered
● The channel digital sound processing allows the user to control volume and programs
● Moisture resistant provides durability to most forms of moisture and wear
● Wire and headphone are separated to take it more convenient and safety
● Technology has improved to reduce the electromagnetic interference
● Hearing aid devices are suitable for severe hearing loss people
● Hearing aids are small enough to put easily in your pocket or handbag
● Adjust volume to the minimum before wearing.
● Choose an earplug of slightly bigger size.
● Increase volume gradually to avoid sudden increase in sound.
● Keep the ear plug clean
● If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
● Remove the battery if you don't use it for long time.
● If you don't know how to solve it, please contact the seller first
Dimensions and Weight
| Product weight: 0.1000 kg |
Package weight: 0.1780 kg
Product size (L x W x H): 10.00 x 10.00 x 10.00 cm / 3.94 x 3.94 x 3.94 inches
Package size (L x W x H): 12.00 x 12.00 x 12.00 cm / 4.72 x 4.72 x 4.72 inches
|Package Contents: 1 x Hearing Aid, 1 x Carrying Case, 1 x Charger ( 110 to 240v ), 4 x Earplug, 1 x English User Instructional Brochure|