Ear Digital Hearing Aid XINGMA XM-900A

Description

Ear Digital Hearing Aid XINGMA XM-900A

Specification:

Lightweight and is appropriate for use in either ear. Enables the user to adjust the tone and sound for better listening. Includes 3 ear parts and a carrying case for 2 batteries. State of the art technology of mini-microprocessors.

Advantage:

• Max output of sound: 110 ± 5dB B
• Sound gain: ~30dBB gain:
• Total distortion of the harmonic wave: ~10%
• Range of 4.Frequency:300~4000Hz
• Input noise: ~40dBB noise
• Voltage: d.c.1.5V d.c.1.5VV
• Current: ~4mAA Current:

Package item:

• 1 x sound amplifier ear
• 3 x Different sized earplugs
• 2 x Batteries AG13
• 1 x manual of guidance