Viking Electronics E 30 IP EWP Stainless Steel Handsfree IP Phone EWP Tackle Box but you’ll also embrace selectable Crockpot but you’ll also embrace selectable multilevel inputs and dual remote outputs (high levels out and sub levels out) that connect 2 different amplifiers Dimensions (Wxhxl) 10 X 2 <4 watts) Automatic noise canceling (ANC) feature for proper operation in noisy environments VoIP eliminates the need for "Push to Talk" mode Network downloadable firmware Handsfree operation Marine grade 316 stainless steel prevents corrosion Programmable to dial up to 5 numbers on busy or ring no answer Cycles through backup phone numbers on busy or no answer Enhanced Weather Protection (EWP) time out or touch tone command Remotely programmable Extended temperature range ( 30°F 130°F) 3 different chassis or board only available Volume adjustments for microphone and speaker Flush mountable using the included rough in box or can be surface mounted using an optional VE 5X5 surface mount box Optional PB 100 polling system available Optional SL 2 or BLK 4 EWP strobe light kit available