Artudatech Aviation Headset Noise Cancelling Pilot Headset 7.1mm Plug Excellent Acoustic Design Earphone 100% Brand new and high quality. Product Shape: Same as the picture show Specification Shell material: ABS Headwear: PVC Headband: POM/stainless steel Speaker size:36mm*2 Resistance:64Ohm±15% at 1000Hz Sound Pressure Level:89dB /-3dB at 1000Hz Rated Power:50mW Max Power:200mW Microphone Microphone size:9.7*4.5mm Sensitivity:-36dB /-3dB at 1000Hz Resistance:2.2KOhm Features 1. Excellent acoustic design, new high-noise reduction earphones, provide better sound attenuation function. 2. Easily resist the noise in the environment, with strong sound insulation effect, wearing this earmuff can easily resist the noise and reduce noise trouble. 3. The earmuffs can be rotated 360 degrees freely, and can be adjusted to a comfortable position according to their needs. 4. suitable for hunting, fishing, riding motorcycles, and other working conditions. Compatible With Models: It can be used with 7.1mm Female Plug PTT(Push to talk) Cable,One end of the PTT cable is a 7.1 Female plug, and the other end is a connector type that can have different intercom plugs. (PTT Cable Not Included in this item,you can buy one you need in other items) Package Included: 1 X Walkie-talkie Headset