Brand Name: NoEnName_Null Type: Headset Hign-concerned Chemical: None Origin: Mainland China Item: Tactical Headsets Headsets Type: Airsoft Shooting Communication Headset Wearing Method: Helmet version Tactical Headset Color: black / green / tan Headset Weight: 360g Applicable: Airsoft shooting, training, team activities, tactical games,etc. Note 1: without sound pickup & noise reduction function Note 2: No need to install battery Note 3: fit all element PTT with this headset(Not include PTT) Note 4: the battery compartment and all buttons are for decoration. Note 5: the helmet rail mount are all black color Choice: yes semi_Choice: yes