Valcom's VIP-432A-DF IP 4-Digit Digital Clock/Speaker is a gray metal wall speaker with a clock. The speaker can be either one-way or talkback programmable and provides voice access and a visual time line to a single zone over an IP-based network. The speaker level is adjusted via software during setup. The clock synchronization is initiated via connection to any Network Time Protocol. The VIP-432A-DF is an ideal and effective solution for any environment such as offices, meeting rooms, gymnasiums, warehouses and hallways.