Motorcycle Helmet Two-Way Radio Headset VR-502 Key Specifications/Special Features:

Noise canceling boom microphone is excellent
With coiled PU cable for retractable use
Dual speakers for increased sound and clarity, fit into the ear well for all headsets
PTT button (included) secures to handlebars and controls the two-way functions of radios
Works for full face, open face and flip face
Available for Icom, standard, Yaesu, Kenwood and Motorola transceivers and other brands
Primary competitive advantages:
Packing
Price
Product features
Prompt delivery
Service
Properties
Microphone:
Sensitivity:-38dB, +/-2dB
Impedance:2.2K ohms
Speaker:
Sound pressure level:83dB, +/-3dB
Impedance:32 ohms, +/-15%
Audio output:1W