SPECIFICATIONS

Brand Name: JMLI

Choice: yes

Hign-concerned Chemical: None

Origin: China Mainland

1.Max sound output:118±4dB

2.Sound gain: ≥32dB±2dB

3.Total harmonic wave distortion: ≤7%

4.Frequency range:300-4500MHz

5.Input Noise:≤32dB

6.Voltage:d.c.3.7V

7.Current:≤2mA

8. Full charging about 2-4 hours

9. Normal working about 35 hours