Plastic
NOISE REDUCTION – Walker’s Silencer 2.0 Bluetooth earbuds provide impressive hearing protection of 24 dB NRR (Noise Reduction Rating) protection against gun blasts while providing Bluetooth connectivity to enable devices
CONTROL APP – The application ease of use is direct and to the point. You can pair the Walker’s BT 2/0 within the application, control the volume of each bud separately, program various sleep modes, battery charge indication and four sound quality modes