FT-10 Noise Reduction Long-Lasting Hearing Aid Headphones Clip-On Sound Amplifier

1. The maximum gain is over 48dB, which can effectively compensate for hearing impairment, making previously indistinct conversations and TV words clearly audible
2. The lightweight design is combined with a stable collar, and it is unlikely to fall off during movement. The open-ear design ensures comfort and does not cause discomfort after long wear
3. Wide compatibility, stable connection up to 10 meters. Full protocol support, stable connection with multiple devices such as mobile phones and computers, seamless communication within 10 meters without any obstacles
4. Bluetooth 5.4 and high-performance audio chip, enabling instant mode switching and clear, coherent sound, truly natural
5. One device for two purposes, switch to Bluetooth mode and it can be used as a Bluetooth headset
6. Low distortion, natural and not irritating sound, total harmonic distortion less than 2%, the sound remains clear and true even after amplification, and it is not tiring to listen for a long time
7. Built-in 14mm large voice coil unit, wide frequency response range (20Hz-20kHz) and high sensitivity, allowing for rich details of human voices and environmental sounds, true and accurate reproduction
8. It has a wide range of applications and can be used in various scenarios such as outdoor hiking, family communication, and office work
9. Large-capacity battery, Type-C charging port, long-lasting battery life

Parameters
1. Speaker impedance: 1200 + 5%
2. Frequency response range: 20Hz - 20KHz
3. Speaker sensitivity: 125 + 2dB
4. Rated current: 4.71mA
5. Wireless transmission distance: more than 10m
6. Bluetooth version: 5.4
7. Battery capacity: 110mAh
8. Charging interface: Type-C
9. Average gain at full scale: more than 48dB + 3dB
10. Maximum OSPL90: 120dB + 3dB
11. Average value of high-frequency OSPL90: 113dB + 3dB
12. Total harmonic distortion: less than 2%
13. Equivalent input noise level: less than 25dB
14. Effective hearing aid frequency range: 200Hz - 6800Hz