It can help the elderly hear the sound clearly and loudly
Ergonomically styled to sit comfortably and gently on your ear
Convenient for watching movie, enjoying the drama, attending meeting, or having class
Specifications:
Maximum sound output: 118±4dB
Maximum sound gain: 32dB+5dB
Frequency range: 300~3800Hz
Total harmonic distortion: 5%
Input noise: s30dB
Current: 1.5mA
Voltage: DC.1.4V
Battery Capacity: 1.2V/28mAh
Continuous working hours: 30 hours