3M # 7100117621 – Peltor Sport Tactical 500 Smart Electronic Hearing Protector with Bluetooth Technology, NRR 26 dB, Ideal for the Range, Shooting and Hunting, TAC500-OTH. Peltor Sport Tactical 500 Electronic Hearing Protector TAC500-OTH – 1EA. WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer.