Note: This product fits perfectly on our FAST helmets and WENDY helmets. With noise cancellation, it is a true noise-cancelling headset. Product Name: LPRED headset(with sound pickup and noise reduction function) Product Material: Sound insulation cotton, ABS(shock proof fiber additive type) Headset Color: Black, Green, Tan, Black multicam, Multicam, Carbon fiber, Leaf camouflage, rain forest Headset Weight: 380g Chip System: HS-WST05 (the fifth generation chip) Wearing Method: Helmet version Applicable: Airsoft shooting, training, team activities, tactical games, etc. Features: Comfortable and skin-friendly material. Humanized design, removable microphone can be installed in the left or right side. Easy to use buttons.Suit for 19-21mm helmet guide. 360 Flexibly adjust the angle, adjustable length. Considerate and friendly design. Note: Use with AAA battery(2pcs)(battery not included) With sound pickup and noise reduction function Use the headset with PTT Package includes: 1 * tactical headset