• Discreet Wearability: The F23D3 features a discreet, in-ear design that fits deep within the ear canal, providing a subtle yet effective hearing aid solution
• Non-Programmable: This hearing aid is non-programmable, streamlining the user experience and ensuring simple, straightforward operation without the need for complex adjustments
• Clear and Comfortable Sound: Equipped with integrated signal processing technology, the F23D3 delivers clear and comfortable sound in a variety of environments, enhancing confidence during conversations and daily activities
• Enhanced Hearing Experience: By providing a crisp and comfortable audio experience, the F23D3 ensures users stay connected with the surrounding sounds effortlessly

Specifications:

• Output Sound Pressure Level (90dB): Max < 114+3dB / Avg 108±4dB
• Saturated Output Sound Pressure Level (50dB): Max 30±5dB / Avg 28±5dB
• Frequency Range: 250 ~ 5000Hz
• Harmonic Distortion: 500Hz: <5%, 800Hz: <5%, 1600Hz: <5%
• Equivalent Input Noise: < 32dB
• Working Time: 65 hours
• Working Current: < 2mA
• Charging Time: 3 hours
• Battery Type: 10A Zinc-Air battery