For Sepura STP8038/STP8035/STP8030/Sepura STP8000 Single Ear HD01 7.1mm Walkie Talkie Headset with U94 PTT Adapter - Brown ?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 with: ?Sepura STP8038 Package included: ?1 x U94 PTT Headset Adapter ?1 x Headset