Sepura Heavy Duty Spkr Mic 3.5mm Earphone Jack, IP55 - SRH3500..

Heavy Duty Speaker Mic With LED, High / Low Volume Control, 3.5mm Earphone Jack, IP55 Rated.
Suitable for: SRH3500 | SRH3800 | SRH3900 | SRP2000 | SRP3000.
Special Order - Usually Ships in 4 to 5 Weeks.