SINGLE MIC ELECTRONIC MUFF amplifier headphones

GWP-WLK1MEM headphones
- Windproof, high frequency, 4x sound amplification
- One volume control
- Power output - 50 dB
- Volume adjustment
- Sound Activated Compression (SAC) - 0.02 seconds
- Noise reduction value, NRR 22dB
- Low-profile earcups
- 1 "AAA" alkaline battery included

Instructions for use:
Before use, insert the battery into the device, the battery door is inside the earpiece (the side where the on/off wheel is also on), open it by pulling the red ribbon inside the earpiece. The size of the headphone frame is adjustable by smoothly pulling the side fork frame.
We put the headphones on and the actual start of the damping/gain is by turning the wheel, which also controls the volume. After use, the device is switched off by turning the adjustment wheel to its original position.