Features
- Noise reduction rating + NRR22
- 3 levels electronic restoration of ambient sound
- Suppresses harmful noise above 82 dB while amplifying low-level sounds
- Different reminder tones of ON/OFF & restoration adjusting
- Power by 2xAAA batteries, approx. 350 hours of operation with new alkaline batteries, 4 hours auto shut-off mechanism
- Ergonomic designed cups provide super comfortable wearing & sealing (Anti-sweat with NANO technology)
- Comes with AUX 3.5mm jack for media players
- EMI/RFI filter suppresses interference generated by electronic devices, increased RF immunity for EMI environment