Features 1、Suitable For Head Circumference: Intercom headset is suitable for 20.5in~25.2in head circumference, detachable microphone, can be installed left and right. This product can not be used alone, need to be used with PTT. 2、Humanized Design: Foldable hunting headphones retractable adjustable headband, foldable earmuff design. Suitable for both men and women. Ergonomic design for better fit in the ear. 3、Simulated Textured Earmuffs: Headset earmuffs are made of acoustic cotton and ABS (additional anti vibration fiber) material. Very comfortable to wear. Comfortable to wear and no pressure over time 4、Note: This version of Military headset has only communication function, no noise cancellation function. The battery compartment does not have any function. 5、Multi Purpose: Hunting headphone is suitable for expansion activities, military games, film and television props, group activities, role playing and other outdoor sports. Specification Item Type: Headset Product Material: ABS (Shockproof Fiber Additive Type) + Sound Insulation Cotton + Stainless Steel Battery: 2 x AAA Battery (Useless) Suitable For Head Circumference: 20.5in~25.2in Application: Expansion activities, military games, film and television props, group activities, role playing and other outdoor sports. Features 1. Detachable microphone: freely adjustable left and right, very convenient. 2. Simulated texture earmuffs: earmuffs made of acoustic cotton and ABS (additional anti vibration fiber) material. Wear very comfortable. Comfortable, long time will not have pressure. 3. Retractable folding design: convenient storage, adapt to different head circumference Package List 1 x Headset 1 x Intercom Mark 1 x Screwdriver 2 x Screws 1 x Instruction Manual