1. [U94 PTT] The button activates the Push-to-Talk (PTT) unit, which can be clipped onto clothing or belts. The U94 PTT uses a high-durability PTT, capable of withstanding 30,000 to 50,000 continuous presses. 2. [PU WIRE & DEEP SOUND SPEAKER] Cold-resistant PU pull wire, offering high flexibility and strength. The speaker uses a 32Ω±15% at 1kHz imported from Taiwan, delivering a loud and rich sound. 3. [WIDE APPLICATIONS] The throat microphone headset is suitable for half and full helmets. Ideal for scenarios such as jungle warfare, field combat, outdoor riding, etc. 4. [CLAMP TYPE] The clamp-type throat vibration headset features an ergonomic design; the coil size is adjustable to fit various neck sizes. 5. [NOISE REDUCTION] Noise-reducing headphones; the throat vibrates to produce sound, providing high noise isolation even in very noisy and harsh environments. Item Type: U94 PTT System Adapter Material: PU+PTT Color: Black Use: Suitable for Yaesu Vertex VX-6R VX-7R Speaker Specifications: Sound Pressure Level: 108±3dB at 1kHz 1mW Rated Power: 50mW Maximum Power: 100mW Speaker Impedance: 32Ω±15% at 1kHz Microphone Specifications Sensitivity: -31±5dB at 1kHz 0dB=1V/0.316G Output Impedance: 1200Ω±15% at 1kHz Package Includes: 1 x U94 PTT 1 x Telescopic Throat Vibration Microphone 1 x Earplug 1 x Microphone Cable