เครื่องช่วยฟังดิจิตอลขนาดเล็ก F - 138 Tone Bte

#F-138 #Tone #BTE #in #ear #Digital #Mini #hear #Hearing #Aid #Aids #Sound #Amplifier
Description:
100% brand new and high quality
Quantity:1 pc
Color: as picture show
Specification
Max sound output: 130+/- 5dB
Sound gain: ≥ 50dB
Total harmonic wave distortion:≤ 5%
Frequency range: 300 - 4000 Hz
Input noise: ≤ 30dB
Voltage: d.c 1.5V
Current: ≤ 4mA
Battery Type: AG13 button cell battery (not included)
Features:
Super mini size and light weight, not easily to be seen
Adjust volume to the minimum before wearing
Choose an earplug of slightly bigger size to avoid whistler
Increase volume gradually to avoid sudden increase in sound
Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! you!

Package includes:
1 x hearing aid amplifier (batteries not included)
2 x ear cap