Nettalk Duo Nettalk Duo With 3 Months Of Service Included Dimensions: 2.7 inch x 1.5 inch x 0.9 inch Plug n' Play (requires activation) 1 x RJ-11 port, 1 x Ethernet port; Mini USB; 3' USB to Mini A connector; 3' Ethernet cable Free calling to the US & Canada or DUO to DUO; No computer needed / No contracts / No monthly bills; Ultra-low cost international calling rates First 3 months of service is included. $39.95 each year; 24/7 technical support and personalized customer service;