Heinrich's WT10 is a weekly timer with 10 zones, designed to provide a public address system and background music for medium to large-scale sound systems. It is an intelligent controller that can be used in schools, shopping malls, hotels, and intelligent offices.

The WT10 is an all-in-one intelligent PA system controller that includes a weekly timer, 10-zone speaker selectors, an MP3 player, a remote 10-zone paging controller, fire alarm, and voice evacuation. It also features a system interface and programmable power sequencer.

The device comes with a built-in weekly timer, monitor, 10-zone speaker selectors, 6-channel power sequencers, and an MP3 player. It is expandable from 10 zones to 160 zones. There are three modes of voice alarm: all zones, separate zone, and neighboring zones voice alarm. The amplifier or 5 amp inputs can be divided into 10 zone speaker output. The timely broadcast feature allows up to 99 program sources, with broadcast modes including random, repeat, and circle. There are four regular programs and one spare program for emergency or particular circumstances.

The device has a functional swift key for internal MP3 player priority manual broadcast. The zone 1-10 selector, all zone selectors, music/paging switch, MP3 swift button, swift program button, power control channel 1-4 buttons, and menu button are also included. The power handling is 5000W over each 10 zones, and the system communication distance is up to 1km. The device has a memory function, even in case of power off.