It can help the elderly hear the sound clearly and loudly
Ergonomically styled to sit comfortably and gently on your ear
This dynamic system can fit either your left or right ear
Convenient for watching movie, enjoying the drama, attending meeting, or having class
Specifications:
Maximum sound output: 129±4dB
Maximum sound gain: 32dB±5dB
Frequency range: 400~3800Hz
Total harmonic distortion: 5%
Input noise: Less than 28dB
Voltage: 3.7V
Current: Less than 2mA
Charger adapter: DC 5V/50mA~1A
Battery Capacity: 60mA Li-ion battery
Product Size: 45 x 40 x 10mm