We’re excited about these! Hearing protection, noise isolation headphones, Bluetooth ear buds – all in one! Rock out, take calls, and shoot! If you’re hunting, you might want something that amplifies sounds so you can hear your surroundings, like the TRACKR BLU, but if you’re just plinking the GS Extreme 2.0 won’t steer you wrong. If you’re shooting indoors these are comfortable and low profile enough some passive muffs are comfortable on top for added protection. The basics: Sportfit ear hooks to comfortably stay in your ear Rechargeable lithium battery on lanyard 25 hours hearing enhancement & protection run time 120 hours standby time Extra set of heavy duty foam earplugs for maximum seal in any ear canal size. ABS, medical grade, non-allergenic acrylic shells Control sticks for Bluetooth, hearing enhancement & protection volume More specs: 5.0 Bluetooth audio for studio quality audio & hands free communication Shuts out sounds at 85 dB or louder 0 Hz – 40,000 Hz sound spectrum 19 dB SNR (single number rating) with silicone tips 29 dB SNR with foam tips