Product name: IP67 Speaker Mic
◆ Air tightness tested on assembly line(IP67).
◆ Immersion rated with 3.5mm earphone jack closed.
◆ 300,000 times life-time PTT with mechanical protection.
◆ Crystal voice and improved intelligibility.
◆ Ornamental design patented.
◆ Specially designed for police, security, industrial, retail, hospital, hotel personnel.