1. Compliance with IP55 standard.
2. High/low volume control.
3. With Φ3.5mm external earpiece jack.
4. With 360°swivel metal clip.
5. High quality speaker and noise-canceling microphone help provide clear audio even under noisy environment.

Speaker Specifications:
Rated Impedance: 20Ω±15% (@ 1.5kHz);
Sound Pressure Level: 90±3db (1w/30cm)(@ 0.8/1.0/1.2/1.5kHz AVE);
Rated Power: 1W   Max. Power: 3W ;

Microphone Specifications:
Sensitivity: -40±3dB @ 1KHz(0dB=1v/Pa);
Direction: unidirectional;

Weight: about 145g;

Operating Temperature: -30℃~65℃

Application: for noisy locations (such as ports and construction sites) and emergency situations (such as rescuing).
Compatible Radios:TC-780, TC-780M, TC3000, TC3600, TC-610P, TC3600M, TC-880GM,TC-700P