Professional headset: Tactical Bowman Elite II headset widely used by special forces, designed for active combat and high noise applications Practical: Allow headset to be worn under electronic protection or ear defenders, such as for Sordin Supreme Pro Good sound quality: Vented type ear pad enables peripheral hearing or talk-through audio from electronic hearing protection Angle adjustable microphone: Offer a low-profile and vented ear-cup and a flexible microphone boom which is mounted Comfortable wearing: Three adjustable suspension straps allow for a comfortable fit and high stability U94 PTT adapter: U94 PTT, the buttons feel good, and the large PTT is easy to operate High-quality U94 PTT part: The U94 PTT part adopts high-intensity PTT, which can be pressed continuously for 30,000 to 50,000 times Durable wire: The wire is made of cold-resistant PU tensile wire, which has high flexibility and strong toughness Specifications: Frequency response: 150Hz-500Hz Sensitivity: 46-60dB Impedance: 8 Ohms Compatible Walkie Talkie: for 3.5mm phone audio jack