Cap Style Earmuffs

《Product Introduce 》：

Laboratory tested NRR 23db.                Attenuates noise over 85db.
LED power indicator.                            Soft & wide form filled ear cushions.
On/Off switch with volume control.         Comfortable with Safety Helmet.
Solid-state circuit.                                 Powered by Two AA batteries ( not included ),
Built-in microphone amplifier.                 provide 200+ hours of service.
low-level sounds.

 

Item #GE1740