• Quality sound: The aviation headset with 24dB NRR (Noise Reduction Rating), clear Hear 50mm performance speakers
• Comfortable to wear: With foam ear pads, stainless steel headband and deep pocket ear canals, student pilots and flight instructors will enjoy the all day comfort
• Clear communication: Clear and reliable communication between crew, instructors, and the tower is critical to your flight and enjoyment
• Clear sound: Always be heard with the new designed EM56 noise reflective cup microphone and foam wind block mic muff
• Electronic noise reduction: With electronic active noise reduction and sound collection technology, this earphone provides clearer, natural sound and protection for your ears
• Chip protection: This headset chip is well protected by the film layer, can provide a higher defense against mold, dust and moisture
• High-strength material: The plug cable is made of Kraft cable and TEP cover. It has stretch, strength and frost resistance, and is not easy to age and hard
• Durable headband: The headband is made of the first layer of cowhide, not easy to deform and weak

Specifications:

• NRR: 24db
• Impedance: 150 ohms/mono
• Freq: Range 100-1700Hz
• Sensitivity: 101db with 1mW input
• Volume control attenuation: 23db
• Microphone type: Electret noise canceling mic
• Freq response: 300-8,000Hz
• Mic source resistance: 220-2200 ohms