1. No tube 2. Coiled PVC or PU cable 3.PLT-QD plug is easy to disconnect or connect 4 .Length 3.0 meter 5. Compatible with most IP phones (Avaya,Polycom,Mitel,Astra,Fanvil,Digium,Ecense,Nec, Sangoma,Alcatel etc. ) and analogue phones
WhatsApp us