Electronic ear muffs designed to protect the hearing from sudden loud nosies.Suitable for use with in/outdoor powe tools etc

Electronic ear muffs Technical data:

Power source: 2xAA batteries(not included).

Solid state circuit .

Built-in microphone amplifies low sounds

Electonically deadens sound above 85Db.

The NRR is 26 decibels (dB).

On / Off switch with volume control .

Color:  Black, Blue,Green, Red etc

When worn properly and given adequate care, this sound muffler provides excellent protection by filtering out high frequency noise caused by machinery, motors, saws and gunfire.

1. Extend headband to maximum open position and place the cups over the ears with the headband passing over the head.

2. Settle the head band in position on the head while adjusting the height of the ear cups up or down until they feel comfortable and the headband rests on the top of the head to support the muffs.

3. Make sure that the headband is evenly adjusted, left to right. The ear cushion should be a snug fit against the head.

4. Make sure to get as little air as possible between the ear cushions and your head. Muffs should be cleaned regulary with soap and water.
CAUTION.

For noise environment dominated by frequencies below 500Hz, the C-weighted environmental noise level should be used. Improper fit of this device will reduce its effectiveness in attenuating noise. Although hearing protection can be recommended for protection against the harmful effects of impulse noise, the Noise Reduction Rating is based on the attenuation of continuous noise.
INFORMATION REQUIRED BY EPA.

The level of noise entering a persons ear, when Hearing protector is worn as directed, is closed approsimately by the difference between the A-weighted environmental noise and the NRR.These specially deisgned over-ear hearing protectors not only protect your hearing from loud sources such as gunfire, but also allow you to hear normal conversation, range commands, even the sound of game in the woods.

The  features an electronic amplification mechanism that clarifies low pitch sounds, but shuts down within milliseconds when sounds above 85dB occur.
Instructions for Operation.

1Turn the switches to the ON position.

2 Place it on your head.

3 Adjust the volume until hearing is at a normal and comfortable level to meet your needs.

4 Turn the switches OFF when not in use.

Instructions for battery installation or replacement.

1 Turn the control switches to the OFF position.

2 Use a coin in the provided slot at the bottom of the cups to pry the ear cushion assembly away from the cup that contains the control mechanism.

3 Remove the outer foam baffle. This will reveal the batteries place (2). Do not disturb the white inner baffle.

4 Remove the discharged batteries.

5 Insert new batteries, making sure that they are installed with negative (flat) end against the coil spring.

6 Replace the outer foam baffle.

7 Install the ear cushions assembly by engaging the top edge first and pressing in at the bottom until the assembly snaps into place.