These In-Line Push-To-Talk adapters are used for NATO wired headsets or downleads. The PTT adapter is palm-activated and waterproof for use with MT headsets and 2-way electronic headsets. Unit can be used with ring finger PTT accessory (TK55) by selecting option. Option adds an auxiliary jack for the TK-55.

For Motorola Radio Models:

• XTN446/500/600 Series
• SP10/21
• GTI
• Spirit Pro M Series

For use with NATO wired headsets or downleads only.