TAC-SKY RAC Tactical Headset Communica Pickup Noise Reduction for Fast Helmet ARC Rail Adapter Tactical High-cut Headset RAC PTT TAC-SKY Two AA batteries are required

Two AA batteries are required for headphone power supply (not included)

the clip is very strong and not easy to get off

so that the wire that hooks the column can be removed

Sealing and comfort are improved

It is made of premium polycarbonate for excellent resistance to abrasion and tearing

TAC-SKY RAC Tactical Headset Communica Pickup Noise Reduction for Fast Helmet ARC Rail Adapter Tactical High-cut Headset RAC PTT TAC-SKY Two AA batteries are requiredNote: This headset is a civilian version only compatible with the civilian version of PTT, (not compatible with the military version of PTT) 1. The guide rail adapter supports FAST series helmets, ACH helmets, MICH helmets and other helmets with ARC guide rails on the side; 2. Sound pickup and noise reduction (install 2 AAA dry batteries, not included); 3. The functions different from other earphones are: indoor and outdoor modes (dual mode is