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yiwu biotect medical Co.ltd 3yr.
Contacts Elena Chat
Mobile 86-13516898881
E-mail 249899822@qq.com
biotech0529
WhatsApp +8613516898881
Parameters:
Max Sound Output: 129±4 dB
Max Sound Gain: 55±5 dB
Harmonic Wave Distortion: ≤5%
Frequency Range: 450~3500 Hz
Input Noise: ≤30dB
Battery: 1 x AAA battery
Working Voltage: dc1.5V
Working Current: ≤4mA
Accessory List:
1 x Host
3 x earplugs
1 x Anti-vibration Box
1 x single earphone cord
1 x English User Manual
1 x AAA battery
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