ITE hearing aid JH-A39

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Short description
JINGHAO JH-A39 rechargeable in-the-ear (ITE) hearing aids are compact, medically oriented sound amplifiers designed for users with moderate to severe hearing loss. These ITE devices integrate a built-in lithium rechargeable battery and a magnetic charging case for repeated use without disposable batteries.

Features

• In-ear wireless design resembling earbuds to preserve user discretion and privacy.
• Amplified sound up to specified OSPL90 levels, suitable for conversational support and TV listening.
• Simple controls with large button and audible indicators; 6 volume levels with audible beeps per step.
• Magnetic contact charging inside a portable recharging case; LED indicators show charging status (blue charging, white fully charged).
• Includes multiple ear tip sizes (S/M/L) for fit and comfort.
• Certification: CE, ROHS, ISO13485, Free Sale (CFS).

How to operate

• Press and hold the button (≈3 s) to power on; single beep confirms power on.
• Short press to cycle volume across 6 levels; each increase produces a beep; three beeps denote maximum volume and a subsequent press returns to lowest level.
• Press and hold (≈3 s) to power off; two beeps confirm shutdown.

Specification

• Model: JH-A39
• Type: Rechargeable in-the-ear (ITE) hearing aid / wireless earbud amplifier
• Frequency range: 400–4000 Hz
• Reference test gain: 23 dB ±5 dB
• Max OSPL90: ≤113 dB ±3 dB (table) / alternate spec ≤120 dB ±3 dB (documented)
• Average OSPL90: ≤109 dB ±4 dB
• Equivalent input noise / EQ input noise: ~29–35 dB (documented values vary)
• Total harmonic distortion: ≤7% (table) / ≤10% (alternate spec)
• Battery: Built-in lithium rechargeable (hearing aid charge voltage 4.2 V; charging case working voltage 3.7 V)
• Charging time: approx. 90 minutes
• Working/listening time: documented values vary (12 h to up to 16 h)

Package included

• 2 x Hearing aids (left/right)
• 1 x Recharging case
• 1 x USB cable
• 6 x Ear tips (S/M/L)
• 1 x User manual

Notes

• Ensure devices and charging case are fully charged before clinical or commercial deployment.
• LED indicates charging (blue) and full charge (white).
• Charging time ~90 minutes; runtime varies by usage and documented sources.
• Use of local mains adapters may be required outside target markets.

Additional information
Color: Black, White
Frequency Range: 400-4000 Hz
Max OSPL90: ≤113 dB ±3 dB
Average OSPL90: ≤109 dB ±4 dB
Total Harmonic Wave Distortion: ≤7%
Reference Test Gain: 23 dB ±5 dB
EQ Input Noise: 29 dB ±3 dB
Battery: Built-in Lithium Battery
Hearing Loss: Moderate, Severe
Package: Color box
Certifications: CE, ROHS, ISO13485 (Medical CE), Free Sale (CFS)

Q&A / Common user notes

• Channels: Mono channel per ear (left and right).
• Maintenance tools: brush and pick included for wax and debris removal.
• Replacement ear inserts: compatible ear domes available for model A39.
• Color options: black and white.
• Use with TV: adjustable volume supports comfortable TV listening and can reduce required room volume.
• Battery type: built-in rechargeable (non-replaceable cell).
• International use: mains adapter may be required for local outlets.