GS Extreme 2.0 delivers 3 products in 1; it’s like having Bluetooth ear buds, noise isolation headphones and electronic earmuffs all in one product. Make these your new ‘Go to Ears’! 29 dB Single Number Rating (SNR). Switch between Sound Enhancement & Protection Mode to Bluetooth Audio Mode, or use both at the same time with independent volume controls to tune to your environment. Sound Enhancement & Hearing Protection 5.0 Bluetooth Audio for Studio Quality Audio & Hands Free Communication Compresses loud sounds at 85 dB or louder 6.5 premium dynamic speaker 0 Hz-40,000 Hz sound spectrum 19 dB SNR with Silicone Tips 29 dB SNR with General Foam Tips 29 dB SNR with Max Protect Foam Tips