Specifications:
Material: ABS
Color: black
Size: 2*1.6*2cm
Charger box: 5.9x3.8x2.7cm
Weight: 35g
Packing list:
Host x 2
Charging box x 1
Earplugs x 6
Brush x1
Manual x1
USB cord x1
With built-in battery (300mah, fully charged in 2-3 hours, stand-alone use, more than 10 hours, the charging compartment can be used 5-7 times)
parameter:
1.OSPL90:≤118dB+3dB
2. Output sound pressure level (average high frequency): 113dB±4dB
3. Full sound gain (Zui maximum gain): 35dB±5dB
4. Full sound gain (average gain): 30dB±5dB
5. Equivalent input noise level: ≤29dB+3dB
6. Frequency response range: 300Hz～4500Hz
7. Total harmonic distortion: ≤5%
8. Environmentally friendly b
