5 Way. The Videx 4 Series is a surface mounted audio kit complete with a 3011 call button Handset. Up to 3 handsets can be connected to each button, making it ideal for bigger apartments. The 4 Series incorporates two way speech and has a stainless steel facia finish with gun metal grey surround.. Electronic call tone. Lock relay output at door panel. Modern robust construction. Comes complete with Videx 3011 Handset