VoiceBooster Type 2 Push To Talk (PTT) Cable for use with VoiceBooster Amplifiers Compatible with all VoiceBooster/Aker Amplifiers but NOT for use with ICOMM. The VoiceBooster brand is owned by TK Products, LLC. Each VoiceBooster product comes with a 6 month parts and Labor Warranty that is serviced by TK Products, LLC. The VoiceBooster must be purchased through TK Products or one it's authorized dealers for Warranty Claims to be honored. Buy with confidence!