The Vertex NANO premium in-ear hearing protection provides all day comfort and protection. The custom micro-circuitry has 2 mode levels for standard and enhanced amplification with a less than 0.02 second reaction time to protect against dangerous impulse noises. Dedicated right and left plugs are each powered by ultra-efficient 312 zinc air cell for up to 120 hours battery life. Batteries included, plus extra bonus set of batteries.
Specifications:

Type
Color	Tan
NRR	25 dB
Quantity	1 Pair
Style	In The Ear
AFT Circuit
Battery	312 Zinc Air Cell
Compression Circuit
Material