4-050 series :
Big PTT Button(Push to talk) /volume control unit , Extended length of acoustic tube
This is ideal for demanding covert security applications where sound clarity and durability are of paramount importance.
Apart from surveillance purposes, it is also commonly used for security at airports, casinos, manufacturing plants, croed-control at conventions and concerts, and other working environment requiring discret communications.
The two-wire earphone kit provides excellent durability, reliability and performance in low-profile environment.
The earphone kit has the following features:
Low-profile, flexible, transparent acoustic tube transmit sound in high quality; the transparent tube would be hardly noticed by others around you;
2 Clip for fix tube and cable.
The plastic earbud fits snugly to your ear canal.
The hidden microspeaker is located in the centre of PTT switch.
Big PTT unit with extendable swivel wire for heavier duty.
Big PTT button / unit.
Extended length of acoustic tube: 45 cm.
Two wires extend from PTT switch, one to the acoustic tube adpater (62 cm ) one to the radio (92 cm ) .
Weight: 68 g.
This earpiece can provide several plugs: