1. Ease of use and compact size.
2. With Φ3.5mm external earpiece jack.
4. Wide application.
Rated Impedance: 4Ω±15% （@ 2kHz 1V）;
Sound Pressure Level: 92±2db (1w/30cm)（@ 300Hz-3KHz AVE）;
Rated Power: 1W Max. Power: 2W;
Sensitivity: -42±3dB @ 1KHz（0dB＝1v/Pa）;
Operating Temperature: -30℃~60℃
Application: for users who work outside, such as city supervisors and traffic wardens.
Compatible Radios: TC-500,TC-600, TC2110, TC2108, TC1600