Product name：In-the-ear hearing aid

Product model：CH-F331

Working voltage：DC3.7V (lithium battery)

Battery capacity：40mAh

Capacity battery life：＞10h

Bluetooth version：BT5.3

Shutdown power consumption：＜10uA

Transmit power：-2dbm~8dbm

Frequency deviation：-15KHz ~ +15KHz Receive sensitivity：≤-80dbm

Maximum OSPL90：≤112dB+5dB

High frequency average OSPL90：100dB±4dB

Full sound gain (average high frequency)：26dB±5dB

Total harmonic distortion：≤5%+3%

The frequency response range is not narrower than：300Hz～5000Hz Equivalent input noise leveal：≤25dB

Rated power supply current consumption(in hearing aid mode)：3(mA)

Product size：62.5mm x 40.5mm x 29mm

Net weight：About 30g