F20D1 Invisible In-Ear Digital Hearing Aids 16 Channel Elderly
Invisible Design: F20D1 is an invisible in-ear hearing aid that uses precise acoustic devices, which offers a sophisticated design that is invisible to wear
Advanced Sound Processing: Use 16-channel WDRC digital chip for precise sound processing
Excellent Sound Quality: Enjoy the excellent sound quality with 16-channel low-level extension, maximum output tone and 64-band equalizer
Intelligent Noise Management: Experience clear conversations with intelligent background noise cancellation and adaptive feedback management
Convenient Adjustment: Easily adjust the volume and switch programs with the button with multi-function buttons and volume control
Rechargeable Function: Powered by lithium battery, it offers a long time and a quick 2.5-hour charging time to ensure uninterrupted use to ensure hearing assistance
Specifications:
Model:F20D1
90 dB output sound pressure level: maximum: <114+3dB / average: 108 ± 4 dB
50 dB saturated output sound pressure level: maximum: 30 ± 5 dB / average: 27 ± 5 dB
Frequency range (Hz): 250 ~ 5000Hz
Harmonic distortion: 500 Hz: 5% / 800 Hz: 5% / 1600 Hz: 5%
Equivalent input noise: 32 dB
Working voltage: DC 3.0 ~ 4.2 V
Charging time: 2.5 hours (zinc-air battery)
Battery capacity: charging box: 200mAh, hearing aid: 15mAh
Included in delivery:
2 x hearing amplifier
1 x Charging case
1 x Charging cable
9 x Eartips
1 x Cleaning brush
1 x English user manual
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