It's designed to control those Bi-directional control curtain motor and rechargeable battery powered Bi-directional tubular motor
Model DD2702H 15 channel Bi-directional remote is mainly used for remote controlling the Bi-directional motors (Default factory setting )
You can change the Mode setting, then it can also be used for remote controlling the Uni-directional motors Like working as the model DC1602 15 channel remote
It can not be used for both bi-directional and uni-directional motors in the same time
15 channel remote control ( emitter ) use 3V CR2450 , emission frequency: 433.92 MHz,emission distance : 115 feet indoor (655 feet in open field), Wall mounted magnetic holder