Feature: 1. Premium Material: U94 PTT part adopts high strength PTT, can continue to press 30,000 to 50,000 times. The wire adopts cold resistant PU tensile wire, with high flexibility and toughness. 2. Superior Quality Sound and One Button Device: Speakers imported from Taiwan 32Ω±15% at 1KHZ, loud and thick. Button activates PTT device, which can be hung on clothing or belt. 3. Suitable and Wide Application: The throat mic walkie talkie earpiece is apply to half helmet and full helmet. Applicable scenarios: jungle, field, outdoor cycling and so on. 4. Adjustable Size: Stand throat vibration noise reduction headphones, the throat microphone earpiece is easy to shrink, adjustable coil size, the size can be adjusted to suit the neck. 5. Noise Reduction: Throat vibration produces sound, which is highly soundproof even when used in very noisy and harsh environments. Ambient noise will not be heard. Specification: Item Type: Throat Mic Earpiece Material: PU+PTT Color: Black Applicable: For MOTOROLA XiR P6600 P6620 DP2400 MTP3250 DEP550 DP2400 MTP3550 MTP3150 The Loudspeaker Specification Sound Pressure Rating: 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 List: 1 x U94 PTT 1 x Retractable Throat Vibrating Microphone 1 x Earplugs 1 x Microphone Cable