Electronic Earmuffs (NRR=28dB)
Negotiable /Piece
Min.Order:1000 Pieces
Suzhou Oulijia Electronic Co., Ltd.
Eletronic Earmuffs' Detailed Desc
1.On/Off switch with adjustable volume control.
2.Auto-adjust head band.
3.Uses 2xAA batteries (not included)
viding approx. 200 hours of use.
5.Color : yellow(transparent) , black(transparent) , red.
6.inner package : colorful box or double blister
7.Lead with 3.5mm mono plug included
Instruction For Use:
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.Extent headband to maximum “ open” position
and place the cups over the ears with the
headband passing over the head.
2. Settle the headband 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 hair as possible
between he ear cushions and your head.
Muffs should be cleaned regularly with soap and
water
Troubleshooting Guide
Problem | Solution |
Fails to turn on
| 1) Replace batteries. 2) Make certain batteries are correctly positioned. Adjust spring contact if necessary. |
Fails to amplify sound or fails to cut out. | Replace the batteries. When the voltage is too low, circuit will not operate.
|
Static | A broad band microwave device, such as a cell phone, is transmitting within 40 ft. |
.
| |
Hummin or bckground nise
| The microphone is very sensitive. Ventilation or air-conditioning fans, motors, car or truck traffic, wind etc., and other low-level “ white noise” sounds will be picked up and amplified. |