Description: 100% brand new and high quality Quantity:1 pc Color: as picture show Specification Max sound output: 130+/- 5dB Sound gain: ≥ 50dB Total harmonic wave distortion:≤ 5% Frequency range: 300 - 4000 Hz Input noise: ≤ 30dB Voltage: d.c 1.5V Current: ≤ 4mA Battery Type: AG13 button cell battery (Not included) Features: Super mini size and light weight, not easily to be seen Adjust volume to the minimum before wearing Choose an earplug of slightly bigger size to avoid whistler Increase volume gradually to avoid sudden increase in sound Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item.

17 USD InStock