Easy to use tool less (no soldering or screwdriver req.) modular RJ-11 Keystone jack. To be used with keystone wall plate or panel. Wiring diagram on clip. Note that the width of the RJ11/12 keystones is such that two cannot be used side-by-side in the same wall-plate. Monoprice continually strives to improve its product line to bring our customers the best products available. Therefore changes may be made to listed specifications without prior notice. Item received may not match photo or specs shown. The color indicated can vary in tone and/or hue between production runs and manufacturing facilities. The color of this item may not be an exact match to any other product even if they are indicated as being the same color.